Respostas

2013-08-12T15:41:18-03:00
(a+b)²=a²+2*a*b+b²

a = 11a²b³
b = 7

(11a²b³ + 7)² = (11a²b³ )² + 2 *(11a²b³)*7 + 7² = (11a²b³ )² + 14*(11a²b³) + 49