engineering mathematics MCQ #4298

The value of p for which the roots of x² + px + 2 = 0 are equal is?

engineering mathematics MCQ #4298

  1. Question 1

    Q1. The value of p for which the roots of x² + px + 2 = 0 are equal is?

    • A) ±2√2
    • B) ±√2
    • C) ±4
    • D) ±2

    Answer: ±2√2

    Explanation: For equal roots, the discriminant b² - 4ac = 0. So, p² - 4*1*2 = 0, hence p = ±2√2.