Question

desenvolva (3xˆ2-1)ˆ3

Answer 1

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

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

$(-1)^{3} = (-1) . (-1) .(-1) = - 1$

$3x^{6} - 1$