Question

x+2/x²+x+1 - 1-x²/x³-1

(fracción)

Answer 1

Explicación paso a paso:

x+2/x²+x+1 - 1-x²/(x-1)(x^2+x+1)

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

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

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

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

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