Respostas

A melhor resposta!
2014-08-17T15:30:18-03:00
(a-b)²=a²-2ab+b²
(m-8)²=m²-16m+64
(6-x)²=36-12x+x² ou x²-12x+36(forma geral)

Formula-->a²+2.a.b+b² (a+b)²
a²-2a.b+b² (a-b)²
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