Question

How to solve
(x-1) (x³+4x²+4x-1)

Answer 1

(x^4+4x^3+4x^2-x-x^3-4x^2-4x+1))

(x^4+3x^3-3x+1)

Here 4x^2 would be cancelled because one contain P sign and other one is of N sign