Question

Fatorar

(x^2 / 9) - (4xy/15) + (4y^2/25)

Answer 1

veja

$\frac{x^2}{9} - \frac{4xy}{15} + \frac{4y^2}{25} =$

mmc(9,15,25)=225


$\frac{25x^2-60xy+36y^2}{225} = \frac{(5x-6y)^2}{225}$