Question

if -1 is a zero of the polynomial p(x)=ax 3 -x2 + x + 4, find the value of 'a'

Answer 1

This is the step by step answer

Answer 2

Answer:

a = 2

Step-by-step explanation:

p(x)=ax3-x2+x+4=0

x=-1(as -1 is the zero of the polynomial)

p(-1)=-a - 1 -1 +4=0

-a-1-1+4=0

-a = -2

Therefore a=2