Question

If both (x + 1) and (x - 1) are factors of ax3 + x2 - 2x + b, find a and b. 

Answer 1

First substitute x = -1 and then substitute x = 1.
P(x) = 0
Solve for both.
U will get two equations in two variables 'a' and 'b'.
Solve it simultaneously.
U will get the value of a and b.
If u understand then do it otherwise, i will provide u the answer.
Do it Urself First!!
Cheers!

Answer 2

Please mark my answer as the brainliest!!