Question

11. lf(x+2) is the factor of the polynomial f(x) = (x3-4x2-2x+20),
then what is the value of f(-2) ?​

Answer 1

Answer:

X+2 =0

X=-2

F(-2)=(-2)^3-8-2*(-2)+20

=-8-8-4+20

= -20+20

=0