Question

Produtos notáveis
(3a+8b)²

Answer 1

Resposta:

$(3a + 8b) {}^{2} = \\ \\ = (3a + 8b)(3a + 8b) \\ \\ = 9 { a}^{2} + 24ab + 24ab + 64 {b}^{2} \\ \\ = \Large \boxed{ \green{ 9 {a}^{2} + 48ab + 64 {b}^{2} }} \\ \\ ou \\ \\ \Large\boxed{(a + b) {}^{2} = {a}^{2} + 2ab + {b}^{2} } \\ \\ (3a + 8b) {}^{2} = (3a) {}^{2} + 2(3a)(8b) + (8b) {}^{2} \\ \\ = \Large \boxed{ \green{9 {a}^{2} + 48ab + 64 {b}^{2} }} \\ \\ \Large \boxed{ \bf \: \underline{\blue{Bons \: Estudos!}12/05/2021}}$