Question

Find the value of a , if x – 1 is a zero of the polynomial p(x) = ax3 – x

2 + x +4​

Answer 1

Answer:

This means that x-1 =0

=x=1

then = 1×3 -1

3-1= 2

so the ans is 2

Answer 2

Answer:

a=-4

Step-by-step explanation:

GIVEN, p(x)=ax^3-x^2+x+4

Since x-1 is a factor of p(x), p(1)=0.

So, p(1)=a1^3-1^2+1+4

a-1+1+4=0

a+4=0

a=-4

Thank you