Question

Calcule o volume de um cubo de aresta igual a x+2:

Answer 1

V = h × c × l

V = (x+2)³

V = (x+2) (x+2) (x+2)

V = (x + 2)(x² + 4x + 4)

V = x³ + 4x² + 4x + 2x² + 8x + 8

V = x³ + 6x² + 12x + 8