The roots of the quadratic equation ax^2 - bx - c = 0, a ≠ 0 are

Question

The roots of the quadratic equation \(ax^2 - bx - c = 0, a \ne 0\) are

(A) \(\frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\)

(B) \(\frac{b \pm \sqrt{b^2 + 4ac}}{2a}\)

(C) \(\frac{-b \pm \sqrt{b^2 + 4ac}}{2a}\)

(D) \(\frac{b \pm \sqrt{b^2 - 4ac}}{2a}\)

Answer 1

Correct option is (B) \(\frac{b \pm \sqrt{b^2 + 4ac}}{2a}\)

The roots of a quadratic equations \(a x^{2}-b x-c=0\) are \(x =\frac{b \pm \sqrt{b^2 + 4ac}}{2a}\).

Answer 2

AnkushLather, hello

For the quadratic equation that you have asked about, namely

ax² - bx - c = 0

The correct option is (B)  \(x = {b \pm \sqrt{b^2+4ac} \over 2a}\)