Respostas

2014-08-03T20:04:18-03:00
(X-8)(x+1)
X^2+ x -8x -8
X^2 -7x -8=0

49-4.1.-8
49+32=81

+7 +9/2=8
+7 _9/2=-1
2014-08-03T20:05:19-03:00
(X-8)(x+1)
X^2+ x -8x -8
X^2 -7x -8=0

49-4.1.-8
49+32=81

+7 +9/2=8
+7 _9/2=-1