Question

calcule o quadrado
(x5 + 2x³)²

Answer 1

EAE mano,

aplique a regra básica do quadrado da soma de dois termos..

$(a+b)^2=a^2+2ab+b^2$

onde,

$a=x^5\\ b=2x^3$

$(x^5+2x^3)^2=(x^5)^2+2\cdot (x^5)\cdot(2x^3)+(2x^3)^2\\\\ \Large\boxed{(x^5+2x^3)^2=x^{10}+4x^8+2x^6}$

Tenha ótimos estudos mano ;D