Respostas

2013-09-26T00:42:30-03:00
olha, é pra ficar;

(10p + 3q )²
x = 10p e y = 3q
(10p)² + 2*(10p)*(3q) + (3q)² = 100*p² + 60*p*q + 9*q²

2013-09-26T00:53:18-03:00
Bem simples

10p^2 + 2.10p.3q +3q^2
100p^2 + 60pg + 9q^2