Question

if -1 is a zero of the polynomial P(X) = ax3 - X2+X+4, find the value of a is


plzz help!!​

Answer 1

Step-by-step explanation:

p(-1) = a (-1)3 - (-1)2 + (-1) +4

= a(-1)- 1-1+4

= a (-1) -2 +4

= a (-1) +2

= a +1

= -1