Respostas

2014-03-21T08:14:04-03:00
 ( \frac{3x-y}{3^{2}} ) Será isso que queres dizer?
= \frac{3}{9} x- \frac{y}{9} = \frac{1}{3} x- \frac{y}{9}
n e 3 al quadrado
[tex] ( \frac{3x-y}{3^{2}} ) [/tex] Será isso que queres dizer?
=[tex] \frac{3}{9} x- \frac{y}{9} = \frac{1}{3} x- \frac{y}{9} [/tex]