Question

calcule (x-1) (x²+x+1)

Answer 1

(x-1) (x²+x+1)

x*(x²+x+1) -(x²+x+1)

x³+x²+x -x²-x-1

=x³-1

Answer 2

Oi

(x - 1).(x² + x + 1) = 

aplica a distributiva..

x³ + x² + x - x² - x - 1 = 

x³ - 1 

bons estudos.