Question

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

Answer 1

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

x^6 - x^4 + x^3 + x^4 - x^3 - x^2 - x^2 - x - 1

x^6 - 2x^2 - x - 1

Answer 2

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

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

x^5 - x^4 + x^3 + x^4 - x^3 + x^2 - x^2 + x -1

x^5 + x - 1