Question

Me ajudem pvf
( x +y/3)²

Answer 1

(x+y/3)² = (x+y/3) (x+y/3)
=
x² + y/3x + y/3x + y²/3

Answer 2

Olá, bom dia ☺

Resolução:

( x +y/3)²

x.x + 2.x.y/3 + y/3.y/3.

x² + 2xy/3 + y²/9

Bons estudos :)