Question

(x^2 + x - 2) (x^2 - x + 2)

Answer 1

Answer:

(x^2+x-2)(x^2-x+2)

=x^2(x^2-x+2)+x(x^2-x+2)-2(x^2-x+2)

=x^4-x3+2x^2+2x^2+x^3-x^2+2x-2x^2+2x-4

=x^4+x^2+2x-4

Answer 2

(x^2 + x - 2) (x^2 - x + 2)

X⁴-x³+2x²+x³-x²-2x²+2x-4

X⁴-x²+2x+4