Question

The zeros of the polynomial x² – 2x – 3 are ______.

पर्याय

• –3, 1

• –3, –1

• 3, –1

• 3, 1

Answer 1

The zeros of the polynomial x² – 2x – 3 are 3, –1.

Explanation:

x² – 2x – 3 = x² – 3x + x – 3

= x(x – 3) + (x – 3)

= (x – 3)(x + 1)

∴ (x – 3)(x + 1) = 0

⇒ x = 3 or x = –1