Question

( x + 1 ) . ( x + 1 ) + ( x + 1 ) . ( x - 1 ) . ( x - 1 ) + ( - x + 1 )

HELPPPPPPPP

Answer 1

( x + 1 ) . ( x + 1 ) + ( x + 1 ) . ( x - 1 ) . ( x - 1 ) + ( - x + 1 ) =
= ( $x^{2} + 2x + 1$ ) + ( $x^{3} - x^{2} - x + 1$ ) - x + 1 =
= $x^{3} + 3$

Answer 2

Copia ai, escrevi na mesa tudo kkkkkk