Question

A expressão x^4 - x^3 + x^2 - x / x^2 - 1 simplificada é?​

Answer 1

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

x³(x-1) + x(x-1) / (x-1)(x+1)

(x³+x)(x-1) / (x-1)(x+1)

(x³+x) / (x+1)