Question

$cuanto da (2+0,3y)^{3}$

Answer 1

(2+ 3/10y)³

es un bimonio al cubo

(a+b)³ = a³+ 3a²b + 3ab² + b³

reemplazando

(2+ 3/10y)³ = 2³ + 3(2²)(3/10y) + 3(2)(3/10y)² + (3/10y)³

resolviendo

8 + 3,6y + 5,4y² + 27/1000 y³