Question

Faça o calculo de (3a³ - 2b)²

Answer 1

ai esta a reposta
$({3a}^{3} ) - 2 \times {3a}^{ 3} \times 2b + ({2b})^{2}$
${9a}^{6} - {12a}^{3} b + {4b}^{2}$