Question

(x+2y)³+1 preciso de ajuda

Answer 1

(x + 2y)³ = (x + 2y)(x + 2y)(x + 2y)

(x + 2y)(x + 2y)(x + 2y) = (x² + 4xy + 4y²)(x + 2y)

(x² + 4xy + 4y²)(x + 2y) = x³ + 4x²y + 4y²x + 2x²y + 8xy + 8y³

x³ + 4x²y + 4y²x + 2x²y + 8xy + 8y³ = x³ + 8y³ + 6x²y + 4y²x +  8xy

Answer 2

Boa tarde 

(x + 2y)⁴ = x⁴ + 8x³y + 24x²y² + 32xy³ + 16y⁴