Respostas

2014-03-27T16:49:56-03:00
(√2+x)³ = (√2+x)(√2+x)(√2+x)=2 +x√2 + x√2 + x² (√2+x) = 
2 + 2x√2 +x² (√2+x) = 
2√2 +2x +2x√4 + 2x²√2 +x²√2 + x³=
x³ +6x +3x²√2 +2√2