Question

A quadratic polynomial whose zeros are 5 and –3, is ______.

Options

• x² + 2x – 15

• x² – 2x + 15

• x² – 2x – 15

• none of these

Answer 1

A quadratic polynomial whose zeros are 5 and –3, is x² – 2x – 15.

Explanation:

α + β = 5 + (–3)

= 2

αβ = 5 × (–3)

= –15

Required polynomial is x² – 2x – 15.