Respostas

2014-02-25T18:33:41-03:00
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2014-02-25T18:34:58-03:00
 2/3+2(3/2)²-(-4 /3)²
2/3+2(9/4)-(16/9)
2/3+18/4-16/9
24/36+162/36/64/36 
24+162-64=122