Resposta:
[tex]8x^{3} + 12x^{2} y + 6xy^{2} + y^{3}[/tex]
Explicação passo-a-passo:
[tex](2x + y)^{3} = (2x + y)^{2} * (2x + y)\\\\\\\\(2x + y)^{2} * (2x + y) = (4x^{2} + 4xy +y^{2})*(2x + y)\\\\\\(4x^{2} + 4xy +y^{2})*(2x + y) = 8x^{3} + 4x^{2} y + 8x^{2} y + 4xy^{2} + 2xy^{2} + y^{3}\\\\\\ Resposta: 8x^{3} + 12x^{2} y + 6xy^{2} + y^{3}[/tex]
