Question

Resolva a equação: ab²-a³ sendo a=-x/2 e b=2x

Answer 1

$= (\frac{-x}{2} ) (2x)^{2} - (2x)^{3} = (\frac{-x}{2} ) 4x^{2} - 8x^{3} = -2x^{3} - 8x^{3} = -6x^{3}$