{
  "title": "Zeros of a Polynomial (Polynomials) - Grade 10 CBSE",
  "total_questions": 100,
  "questions": [
    {"id": 1, "difficulty": "easy", "question": "What is a zero of a polynomial p(x)?", "options": {"A": "A value of x for which p(x)=0", "B": "A value of x for which p(x)=1", "C": "The coefficient of x", "D": "The constant term"}, "correct_answer": "A"},
    {"id": 2, "difficulty": "easy", "question": "The zero of the polynomial 2x - 4 is:", "options": {"A": "2", "B": "-2", "C": "4", "D": "-4"}, "correct_answer": "A"},
    {"id": 3, "difficulty": "easy", "question": "The zero of the polynomial x + 3 is:", "options": {"A": "-3", "B": "3", "C": "0", "D": "1"}, "correct_answer": "A"},
    {"id": 4, "difficulty": "easy", "question": "The zeros of x² - 4 are:", "options": {"A": "2 and -2", "B": "4 and -4", "C": "2 only", "D": "-2 only"}, "correct_answer": "A"},
    {"id": 5, "difficulty": "easy", "question": "The zeros of x² - 9 are:", "options": {"A": "3 and -3", "B": "9 and -9", "C": "3 only", "D": "-3 only"}, "correct_answer": "A"},
    {"id": 6, "difficulty": "easy", "question": "The zeros of x² - 5x + 6 are:", "options": {"A": "2 and 3", "B": "-2 and -3", "C": "1 and 6", "D": "-1 and -6"}, "correct_answer": "A"},
    {"id": 7, "difficulty": "easy", "question": "The zeros of x² + x - 6 are:", "options": {"A": "2 and -3", "B": "-2 and 3", "C": "1 and -6", "D": "-1 and 6"}, "correct_answer": "A"},
    {"id": 8, "difficulty": "easy", "question": "The zero of the linear polynomial 3x - 9 is:", "options": {"A": "3", "B": "-3", "C": "9", "D": "-9"}, "correct_answer": "A"},
    {"id": 9, "difficulty": "easy", "question": "The zeros of x² - 8x + 16 are:", "options": {"A": "4 only (repeated)", "B": "4 and -4", "C": "8 and 2", "D": "-8 and -2"}, "correct_answer": "A"},
    {"id": 10, "difficulty": "easy", "question": "The zeros of x² - 1 are:", "options": {"A": "1 and -1", "B": "1 only", "C": "-1 only", "D": "0 only"}, "correct_answer": "A"},
    {"id": 11, "difficulty": "easy", "question": "The zero of the polynomial 5x + 10 is:", "options": {"A": "-2", "B": "2", "C": "-5", "D": "5"}, "correct_answer": "A"},
    {"id": 12, "difficulty": "easy", "question": "The zeros of x² - 25 are:", "options": {"A": "5 and -5", "B": "25 and -25", "C": "5 only", "D": "-5 only"}, "correct_answer": "A"},
    {"id": 13, "difficulty": "easy", "question": "The zeros of x² + 6x + 9 are:", "options": {"A": "-3 only (repeated)", "B": "3 only (repeated)", "C": "3 and -3", "D": "6 and 9"}, "correct_answer": "A"},
    {"id": 14, "difficulty": "easy", "question": "The zeros of x² - 3x are:", "options": {"A": "0 and 3", "B": "0 and -3", "C": "3 only", "D": "0 only"}, "correct_answer": "A"},
    {"id": 15, "difficulty": "easy", "question": "The zeros of x² + 7x + 12 are:", "options": {"A": "-3 and -4", "B": "3 and 4", "C": "-3 and 4", "D": "3 and -4"}, "correct_answer": "A"},
    {"id": 16, "difficulty": "easy", "question": "The zero of 4x - 8 is:", "options": {"A": "2", "B": "-2", "C": "4", "D": "-4"}, "correct_answer": "A"},
    {"id": 17, "difficulty": "easy", "question": "The zeros of x² - 10x + 25 are:", "options": {"A": "5 only (repeated)", "B": "5 and -5", "C": "10 and 2.5", "D": "-10 and -2.5"}, "correct_answer": "A"},
    {"id": 18, "difficulty": "easy", "question": "The zeros of x² - 16 are:", "options": {"A": "4 and -4", "B": "16 and -16", "C": "4 only", "D": "-4 only"}, "correct_answer": "A"},
    {"id": 19, "difficulty": "easy", "question": "The zeros of x² + 5x + 6 are:", "options": {"A": "-2 and -3", "B": "2 and 3", "C": "-2 and 3", "D": "2 and -3"}, "correct_answer": "A"},
    {"id": 20, "difficulty": "easy", "question": "The zero of 7x - 21 is:", "options": {"A": "3", "B": "-3", "C": "7", "D": "-7"}, "correct_answer": "A"},

    {"id": 21, "difficulty": "medium", "question": "The zeros of 2x² - 5x + 3 are:", "options": {"A": "1 and 3/2", "B": "-1 and -3/2", "C": "1 and -3/2", "D": "-1 and 3/2"}, "correct_answer": "A"},
    {"id": 22, "difficulty": "medium", "question": "The zeros of 3x² - 2x - 1 are:", "options": {"A": "1 and -1/3", "B": "-1 and 1/3", "C": "1 and 1/3", "D": "-1 and -1/3"}, "correct_answer": "A"},
    {"id": 23, "difficulty": "medium", "question": "The zeros of 4x² - 4x + 1 are:", "options": {"A": "1/2 only (repeated)", "B": "1/2 and -1/2", "C": "1 and 1/4", "D": "-1 and -1/4"}, "correct_answer": "A"},
    {"id": 24, "difficulty": "medium", "question": "The zeros of 6x² - 5x - 6 are:", "options": {"A": "3/2 and -2/3", "B": "-3/2 and 2/3", "C":  "2/3 and 3/2", "D": "-2/3 and -3/2"}, "correct_answer": "A"},
    {"id": 25, "difficulty": "medium", "question": "The zeros of x³ - 4x are:", "options": {"A": "0, 2, -2", "B": "0, 4, -4", "C": "2, -2 only", "D": "0 only"}, "correct_answer": "A"},
    {"id": 26, "difficulty": "medium", "question": "The zeros of x³ - 3x² + 2x are:", "options": {"A": "0, 1, 2", "B": "0, -1, -2", "C": "1, 2 only", "D": "0 only"}, "correct_answer": "A"},
    {"id": 27, "difficulty": "medium", "question": "The zeros of x³ - 1 are:", "options": {"A": "1 only", "B": "1, ω, ω²", "C": "-1 only", "D": "1 and -1"}, "correct_answer": "A"},
    {"id": 28, "difficulty": "medium", "question": "The zeros of x³ + 1 are:", "options": {"A": "-1 only", "B": "-1, -ω, -ω²", "C": "1 only", "D": "1 and -1"}, "correct_answer": "A"},
    {"id": 29, "difficulty": "medium", "question": "The zeros of x³ - 6x² + 11x - 6 are:", "options": {"A": "1, 2, 3", "B": "-1, -2, -3", "C": "1, 2, -3", "D": "-1, 2, 3"}, "correct_answer": "A"},
    {"id": 30, "difficulty": "medium", "question": "The zeros of x³ - 8 are:", "options": {"A": "2 only", "B": "2, 2ω, 2ω²", "C": "-2 only", "D": "2 and -2"}, "correct_answer": "A"},
    {"id": 31, "difficulty": "medium", "question": "The zeros of 2x³ - 3x² - 11x + 6 are:", "options": {"A": "3, -2, 1/2", "B": "-3, 2, -1/2", "C": "3, 2, 1/2", "D": "-3, -2, -1/2"}, "correct_answer": "A"},
    {"id": 32, "difficulty": "medium", "question": "The zeros of x³ + 3x² - x - 3 are:", "options": {"A": "1, -1, -3", "B": "-1, 1, 3", "C": "1, 1, -3", "D": "-1, -1, 3"}, "correct_answer": "A"},
    {"id": 33, "difficulty": "medium", "question": "The zeros of x³ - 7x + 6 are:", "options": {"A": "1, 2, -3", "B": "-1, -2, 3", "C": "1, -2, 3", "D": "-1, 2, -3"}, "correct_answer": "A"},
    {"id": 34, "difficulty": "medium", "question": "The zeros of 2x² - √2x - 2 are:", "options": {"A": "√2 and -1/√2", "B": "-√2 and 1/√2", "C": "√2 and 1/√2", "D": "-√2 and -1/√2"}, "correct_answer": "A"},
    {"id": 35, "difficulty": "medium", "question": "The zeros of x³ - 2x² - 5x + 6 are:", "options": {"A": "1, -2, 3", "B": "-1, 2, -3", "C": "1, 2, 3", "D": "-1, -2, -3"}, "correct_answer": "A"},
    {"id": 36, "difficulty": "medium", "question": "The zeros of 3x² - 2√6x + 2 are:", "options": {"A": "√2/√3 only (repeated)", "B": "√2/√3 and -√2/√3", "C": "√6/3 only (repeated)", "D": "√6/3 and -√6/3"}, "correct_answer": "A"},
    {"id": 37, "difficulty": "medium", "question": "The zeros of x³ - 12x² + 44x - 48 are:", "options": {"A": "2, 4, 6", "B": "-2, -4, -6", "C": "2, 4, -6", "D": "-2, 4, 6"}, "correct_answer": "A"},
    {"id": 38, "difficulty": "medium", "question": "The zeros of 4x² - 8x + 3 are:", "options": {"A": "1/2 and 3/2", "B": "-1/2 and -3/2", "C": "1/2 and -3/2", "D": "-1/2 and 3/2"}, "correct_answer": "A"},
    {"id": 39, "difficulty": "medium", "question": "The zeros of x³ - 9x² + 26x - 24 are:", "options": {"A": "2, 3, 4", "B": "-2, -3, -4", "C": "2, 3, -4", "D": "-2, 3, 4"}, "correct_answer": "A"},
    {"id": 40, "difficulty": "medium", "question": "The zeros of 2x² + 5√3x + 6 are:", "options": {"A": "-2√3 and -√3/2", "B": "2√3 and √3/2", "C": "-2√3 and √3/2", "D": "2√3 and -√3/2"}, "correct_answer": "A"},
    {"id": 41, "difficulty": "medium", "question": "The zeros of x³ - 3x² - 10x + 24 are:", "options": {"A": "-2, 3, 4", "B": "2, -3, -4", "C": "2, 3, 4", "D": "-2, -3, -4"}, "correct_answer": "A"},
    {"id": 42, "difficulty": "medium", "question": "The zeros of 3x² - 5x + 2 are:", "options": {"A": "1 and 2/3", "B": "-1 and -2/3", "C": "1 and -2/3", "D": "-1 and 2/3"}, "correct_answer": "A"},
    {"id": 43, "difficulty": "medium", "question": "The zeros of x³ - 4x² + x + 6 are:", "options": {"A": "-1, 2, 3", "B": "1, -2, -3", "C": "1, 2, 3", "D": "-1, -2, -3"}, "correct_answer": "A"},
    {"id": 44, "difficulty": "medium", "question": "The zeros of 2x² - 7x + 3 are:", "options": {"A": "1/2 and 3", "B": "-1/2 and -3", "C": "1/2 and -3", "D": "-1/2 and 3"}, "correct_answer": "A"},
    {"id": 45, "difficulty": "medium", "question": "The zeros of x³ - 6x² + 3x + 10 are:", "options": {"A": "-1, 2, 5", "B": "1, -2, -5", "C": "1, 2, 5", "D": "-1, -2, -5"}, "correct_answer": "A"},
    {"id": 46, "difficulty": "medium", "question": "The zeros of 4x² - 4√3x + 3 are:", "options": {"A": "√3/2 only (repeated)", "B": "√3/2 and -√3/2", "C": "√3 only (repeated)", "D": "√3 and -√3"}, "correct_answer": "A"},
    {"id": 47, "difficulty": "medium", "question": "The zeros of x³ - 2x² - x + 2 are:", "options": {"A": "-1, 1, 2", "B": "1, -1, -2", "C": "1, 1, 2", "D": "-1, -1, -2"}, "correct_answer": "A"},
    {"id": 48, "difficulty": "medium", "question": "The zeros of 6x² - x - 2 are:", "options": {"A": "2/3 and -1/2", "B": "-2/3 and 1/2", "C": "2/3 and 1/2", "D": "-2/3 and -1/2"}, "correct_answer": "A"},
    {"id": 49, "difficulty": "medium", "question": "The zeros of x³ + 2x² - 5x - 6 are:", "options": {"A": "-1, 2, -3", "B": "1, -2, 3", "C": "1, 2, 3", "D": "-1, -2, -3"}, "correct_answer": "A"},
    {"id": 50, "difficulty": "medium", "question": "The zeros of 2x² + 3x - 2 are:", "options": {"A": "1/2 and -2", "B": "-1/2 and 2", "C": "1/2 and 2", "D": "-1/2 and -2"}, "correct_answer": "A"},
    {"id": 51, "difficulty": "medium", "question": "The zeros of x³ - x² - 14x + 24 are:", "options": {"A": "-3, 2, 4", "B": "3, -2, -4", "C": "3, 2, 4", "D": "-3, -2, -4"}, "correct_answer": "A"},
    {"id": 52, "difficulty": "medium", "question": "The zeros of 3x² - 2√5x - 5 are:", "options": {"A": "√5 and -√5/3", "B": "-√5 and √5/3", "C": "√5 and √5/3", "D": "-√5 and -√5/3"}, "correct_answer": "A"},
    {"id": 53, "difficulty": "medium", "question": "The zeros of x³ - 3x² - 6x + 8 are:", "options": {"A": "-2, 1, 4", "B": "2, -1, -4", "C": "2, 1, 4", "D": "-2, -1, -4"}, "correct_answer": "A"},
    {"id": 54, "difficulty": "medium", "question": "The zeros of 4x² + 8x + 3 are:", "options": {"A": "-1/2 and -3/2", "B": "1/2 and 3/2", "C": "-1/2 and 3/2", "D": "1/2 and -3/2"}, "correct_answer": "A"},
    {"id": 55, "difficulty": "medium", "question": "The zeros of x³ - 5x² - 2x + 24 are:", "options": {"A": "-2, 3, 4", "B": "2, -3, -4", "C": "2, 3, 4", "D": "-2, -3, -4"}, "correct_answer": "A"},
    {"id": 56, "difficulty": "medium", "question": "The zeros of 2x² - 5√2x + 4 are:", "options": {"A": "√2 and 2√2", "B": "-√2 and -2√2", "C": "√2 and -2√2", "D": "-√2 and 2√2"}, "correct_answer": "A"},
    {"id": 57, "difficulty": "medium", "question": "The zeros of x³ - 7x² + 14x - 8 are:", "options": {"A": "1, 2, 4", "B": "-1, -2, -4", "C": "1, -2, 4", "D": "-1, 2, -4"}, "correct_answer": "A"},
    {"id": 58, "difficulty": "medium", "question": "The zeros of 3x² + 5x - 2 are:", "options": {"A": "1/3 and -2", "B": "-1/3 and 2", "C": "1/3 and 2", "D": "-1/3 and -2"}, "correct_answer": "A"},
    {"id": 59, "difficulty": "medium", "question": "The zeros of x³ - 2x² - 5x + 6 are:", "options": {"A": "-2, 1, 3", "B": "2, -1, -3", "C": "2, 1, 3", "D": "-2, -1, -3"}, "correct_answer": "A"},
    {"id": 60, "difficulty": "medium", "question": "The zeros of 5x² - 4√5x + 4 are:", "options": {"A": "2/√5 only (repeated)", "B": "2/√5 and -2/√5", "C": "√5/2 only (repeated)", "D": "√5/2 and -√5/2"}, "correct_answer": "A"},
    {"id": 61, "difficulty": "medium", "question": "The zeros of x³ - 4x² - 7x + 10 are:", "options": {"A": "-2, 1, 5", "B": "2, -1, -5", "C": "2, 1, 5", "D": "-2, -1, -5"}, "correct_answer": "A"},
    {"id": 62, "difficulty": "medium", "question": "The zeros of 2x² - 7√2x + 12 are:", "options": {"A": "2√2 and 3√2/2", "B": "-2√2 and -3√2/2", "C": "2√2 and -3√2/2", "D": "-2√2 and 3√2/2"}, "correct_answer": "A"},
    {"id": 63, "difficulty": "medium", "question": "The zeros of x³ - 10x² + 31x - 30 are:", "options": {"A": "2, 3, 5", "B": "-2, -3, -5", "C": "2, -3, 5", "D": "-2, 3, -5"}, "correct_answer": "A"},
    {"id": 64, "difficulty": "medium", "question": "The zeros of 4x² - 12x + 9 are:", "options": {"A": "3/2 only (repeated)", "B": "3/2 and -3/2", "C": "2/3 only (repeated)", "D": "2/3 and -2/3"}, "correct_answer": "A"},
    {"id": 65, "difficulty": "medium", "question": "The zeros of x³ - 6x² + 11x - 6 are:", "options": {"A": "1, 2, 3", "B": "-1, -2, -3", "C": "1, -2, 3", "D": "-1, 2, -3"}, "correct_answer": "A"},
    {"id": 66, "difficulty": "medium", "question": "The zeros of 3x² - 4√3x + 4 are:", "options": {"A": "2/√3 only (repeated)", "B": "2/√3 and -2/√3", "C": "√3/2 only (repeated)", "D": "√3/2 and -√3/2"}, "correct_answer": "A"},
    {"id": 67, "difficulty": "medium", "question": "The zeros of x³ - 8x² + 19x - 12 are:", "options": {"A": "1, 3, 4", "B": "-1, -3, -4", "C": "1, -3, 4", "D": "-1, 3, -4"}, "correct_answer": "A"},
    {"id": 68, "difficulty": "medium", "question": "The zeros of 6x² - 7x - 3 are:", "options": {"A": "3/2 and -1/3", "B": "-3/2 and 1/3", "C": "3/2 and 1/3", "D": "-3/2 and -1/3"}, "correct_answer": "A"},
    {"id": 69, "difficulty": "medium", "question": "The zeros of x³ - 9x² + 23x - 15 are:", "options": {"A": "1, 3, 5", "B": "-1, -3, -5", "C": "1, -3, 5", "D": "-1, 3, -5"}, "correct_answer": "A"},
    {"id": 70, "difficulty": "medium", "question": "The zeros of 2x² - 5x + 2 are:", "options": {"A": "2 and 1/2", "B": "-2 and -1/2", "C": "2 and -1/2", "D": "-2 and 1/2"}, "correct_answer": "A"},
    {"id": 71, "difficulty": "medium", "question": "The zeros of x³ - 11x² + 36x - 36 are:", "options": {"A": "2, 3, 6", "B": "-2, -3, -6", "C": "2, -3, 6", "D": "-2, 3, -6"}, "correct_answer": "A"},
    {"id": 72, "difficulty": "medium", "question": "The zeros of 3x² - 2√6x + 2 are:", "options": {"A": "√2/√3 only (repeated)", "B": "√2/√3 and -√2/√3", "C": "√6/3 only (repeated)", "D": "√6/3 and -√6/3"}, "correct_answer": "A"},
    {"id": 73, "difficulty": "medium", "question": "The zeros of x³ - 13x² + 32x - 20 are:", "options": {"A": "1, 2, 10", "B": "-1, -2, -10", "C": "1, -2, 10", "D": "-1, 2, -10"}, "correct_answer": "A"},
    {"id": 74, "difficulty": "medium", "question": "The zeros of 4x² - 2√2x - 3 are:", "options": {"A": "3√2/4 and -√2/2", "B": "-3√2/4 and √2/2", "C": "3√2/4 and √2/2", "D": "-3√2/4 and -√2/2"}, "correct_answer": "A"},
    {"id": 75, "difficulty": "medium", "question": "The zeros of x³ - 14x² + 56x - 64 are:", "options": {"A": "2, 4, 8", "B": "-2, -4, -8", "C": "2, -4, 8", "D": "-2, 4, -8"}, "correct_answer": "A"},
    {"id": 76, "difficulty": "medium", "question": "The zeros of 2x² - 3√2x + 2 are:", "options": {"A": "√2 and √2/2", "B": "-√2 and -√2/2", "C": "√2 and -√2/2", "D": "-√2 and √2/2"}, "correct_answer": "A"},
    {"id": 77, "difficulty": "medium", "question": "The zeros of x³ - 15x² + 71x - 105 are:", "options": {"A": "3, 5, 7", "B": "-3, -5, -7", "C": "3, -5, 7", "D": "-3, 5, -7"}, "correct_answer": "A"},
    {"id": 78, "difficulty": "medium", "question": "The zeros of 3x² - 5√3x + 6 are:", "options": {"A": "√3 and 2√3/3", "B": "-√3 and -2√3/3", "C": "√3 and -2√3/3", "D": "-√3 and 2√3/3"}, "correct_answer": "A"},
    {"id": 79, "difficulty": "medium", "question": "The zeros of x³ - 12x² + 41x - 42 are:", "options": {"A": "2, 3, 7", "B": "-2, -3, -7", "C": "2, -3, 7", "D": "-2, 3, -7"}, "correct_answer": "A"},
    {"id": 80, "difficulty": "medium", "question": "The zeros of 2x² - √3x - 3 are:", "options": {"A": "√3 and -√3/2", "B": "-√3 and √3/2", "C": "√3 and √3/2", "D": "-√3 and -√3/2"}, "correct_answer": "A"},

    {"id": 81, "difficulty": "hard", "question": "The zeros of x⁴ - 5x² + 4 are:", "options": {"A": "±1, ±2", "B": "±1, ±√2", "C": "±2, ±√2", "D": "±1, ±4"}, "correct_answer": "A"},
    {"id": 82, "difficulty": "hard", "question": "The zeros of x⁴ - 8x² - 9 are:", "options": {"A": "±3, ±i", "B": "±3, ±1", "C": "±√3, ±i", "D": "±3, ±√i"}, "correct_answer": "A"},
    {"id": 83, "difficulty": "hard", "question": "The zeros of x⁴ + x³ - 7x² - x + 6 are:", "options": {"A": "±1, 2, -3", "B": "±1, -2, 3", "C": "±1, ±2, 3", "D": "±1, 2, 3"}, "correct_answer": "A"},
    {"id": 84, "difficulty": "hard", "question": "The zeros of x⁴ - 3x³ - 3x² + 7x + 6 are:", "options": {"A": "-1, 2, 3, -1", "B": "1, -2, -3, 1", "C": "-1, -2, -3, 1", "D": "1, 2, 3, -1"}, "correct_answer": "A"},
    {"id": 85, "difficulty": "hard", "question": "The zeros of x⁴ - 2x³ - 7x² + 8x + 12 are:", "options": {"A": "-1, 2, 3, -2", "B": "1, -2, -3, 2", "C": "-1, -2, -3, 2", "D": "1, 2, 3, -2"}, "correct_answer": "A"},
    {"id": 86, "difficulty": "hard", "question": "The zeros of x⁴ - 10x² + 9 are:", "options": {"A": "±1, ±3", "B": "±1, ±√3", "C": "±3, ±√3", "D": "±1, ±9"}, "correct_answer": "A"},
    {"id": 87, "difficulty": "hard", "question": "The zeros of x⁴ - 5x³ + 6x² + 4x - 8 are:", "options": {"A": "2, 2, 2, -1", "B": "-2, -2, -2, 1", "C": "2, 2, -2, 1", "D": "-2, -2, 2, -1"}, "correct_answer": "A"},
    {"id": 88, "difficulty": "hard", "question": "The zeros of x⁴ - 4x³ - x² + 16x - 12 are:", "options": {"A": "1, 2, 3, -2", "B": "-1, -2, -3, 2", "C": "1, -2, -3, 2", "D": "-1, 2, 3, -2"}, "correct_answer": "A"},
    {"id": 89, "difficulty": "hard", "question": "The zeros of x⁴ + 2x³ - 7x² - 8x + 12 are:", "options": {"A": "-3, -2, 1, 2", "B": "3, 2, -1, -2", "C": "-3, 2, -1, 2", "D": "3, -2, 1, -2"}, "correct_answer": "A"},
    {"id": 90, "difficulty": "hard", "question": "The zeros of x⁴ - 6x³ + 12x² - 10x + 3 are:", "options": {"A": "1, 1, 1, 3", "B": "-1, -1, -1, -3", "C": "1, 1, 3, 3", "D": "-1, -1, -3, -3"}, "correct_answer": "A"},
    {"id": 91, "difficulty": "hard", "question": "The zeros of x⁴ - 13x² + 36 are:", "options": {"A": "±2, ±3", "B": "±√2, ±√3", "C": "±2, ±√3", "D": "±√2, ±3"}, "correct_answer": "A"},
    {"id": 92, "difficulty": "hard", "question": "The zeros of x⁴ - 8x³ + 14x² + 8x - 15 are:", "options": {"A": "-1, 3, 5, 1", "B": "1, -3, -5, -1", "C": "-1, -3, -5, 1", "D": "1, 3, 5, -1"}, "correct_answer": "A"},
    {"id": 93, "difficulty": "hard", "question": "The zeros of x⁴ - 2x³ - 13x² + 14x + 24 are:", "options": {"A": "-1, 2, 4, -3", "B": "1, -2, -4, 3", "C": "-1, -2, -4, 3", "D": "1, 2, 4, -3"}, "correct_answer": "A"},
    {"id": 94, "difficulty": "hard", "question": "The zeros of x⁴ - 4x² + 3 are:", "options": {"A": "±1, ±√3", "B": "±√3, ±1", "C": "±1, ±3", "D": "±√3, ±√3"}, "correct_answer": "A"},
    {"id": 95, "difficulty": "hard", "question": "The zeros of x⁴ - 9x² + 20 are:", "options": {"A": "±2, ±√5", "B": "±√2, ±√5", "C": "±2, ±5", "D": "±√5, ±√5"}, "correct_answer": "A"},
    {"id": 96, "difficulty": "hard", "question": "The zeros of x⁴ - 3x³ - 6x² + 28x - 24 are:", "options": {"A": "2, 2, -3, 2", "B": "-2, -2, 3, -2", "C": "2, -2, 3, 2", "D": "-2, 2, -3, -2"}, "correct_answer": "A"},
    {"id": 97, "difficulty": "hard", "question": "The zeros of x⁴ - 2x³ - 11x² + 12x + 36 are:", "options": {"A": "-2, 3, 3, -2", "B": "2, -3, -3, 2", "C": "-2, -3, -3, 2", "D": "2, 3, 3, -2"}, "correct_answer": "A"},
    {"id": 98, "difficulty": "hard", "question": "The zeros of x⁴ + 4x³ - x² - 16x - 12 are:", "options": {"A": "-1, 2, -2, -3", "B": "1, -2, 2, 3", "C": "-1, -2, 2, 3", "D": "1, 2, -2, -3"}, "correct_answer": "A"},
    {"id": 99, "difficulty": "hard", "question": "The zeros of x⁴ - 7x² + 12 are:", "options": {"A": "±2, ±√3", "B": "±√2, ±√3", "C": "±2, ±3", "D": "±√3, ±√3"}, "correct_answer": "A"},
    {"id": 100, "difficulty": "hard", "question": "The zeros of x⁴ - 5x³ + 5x² + 5x - 6 are:", "options": {"A": "-1, 1, 2, 3", "B": "1, -1, -2, -3", "C": "-1, -1, -2, -3", "D": "1, 1, 2, 3"}, "correct_answer": "A"}
  ]
}