Question

Find the value of p is If -2 is a zero of the polynomial 2 x2

+ 3 x – p.​

Answer 1

F ( x ) = 2x² + 3x - p

As -2 is the zero of the polynomial , substituting x = -2

2 x ( -2 )² + 3 x -2 - p = 0

8 - 6 - p = 0

2 - p = 0

- p = 0 - 2 = -2

Answer ➡ p = 2