Question

6. Find P(1),P(-2) for the polynomial
P(x)=(x+2) (x-2).​

Answer 1

$p(1) = (1 + 2)(1 - 2) \\ = (3)( - 1) \\ = - 3$

$p( - 2) = ( - 2 + 2)( - 2 - 2) \\ = 0 \times ( - 4) \\ = 0$