issb mathematics MCQ #127

The discriminant of 3x² - 2x - 1 = 0 is:

issb mathematics MCQ #127

  1. Question 1

    Q1. The discriminant of 3x² - 2x - 1 = 0 is:

    • A) 10
    • B) 8
    • C) 20
    • D) 16

    Answer: 16

    Explanation: Use b² - 4ac with a = 3, b = -2, and c = -1. This gives 4 + 12 = 16.