Respostas

2013-11-28T23:42:37-02:00
A) X2-2X+10+18X2+6X+12
X2+18X2-2X+6X+10+12
19X2+4X2+22

b) 8X2-4X2-2X+2X+6-6
8X2-4X2
4X2

c) 6X2-3-15X-35+7x2-14X
6X2+7X2-15X-14X-35-3
13X2-29X-38
3 3 3