Question

simplify (x^2+x-2)(x^2-x+2) ​

Answer 1

x2(x2-x+2)+x(x2+x+2)-2(x2-x+2)

x4-x3+2x2+x3+x2+2x-2x2+2x-4

x4+x2+2x+2x-4

x4+x2+4x-4

Answer 2

Hello Mate here is your answer,

$(x {}^{2} + x - 2)(x {}^{2} - x + 2) \\ = > x {}^{4} - x {}^{3} + 2x {}^{2} +x {}^{3 } - x {}^{2} + 2x - 2x {}^{2} + 2x - 4 \\ = > x {}^{4} + 2x {}^{2} - 3x {}^{2} + 4x - 4 \\ = > x {}^{4} - x {}^{2} + 4x - 4$

I hope that helps you