Respostas

2013-11-27T22:00:46-02:00
A)(+8x)+(-5x)=
+8x-5x=
3x

B)(-3a)+(-2a)=
-3a-2a=
-5a

C)(-6m)-(-7m)=
-6m+7m=
1m

F)(3a)*(4b)=
3a*4b=12ab

G)(-xm)*(-2x)=
-xm*(-2x)=
+2x^{2}m

H)(-6m)*(+4am)=
-6m*4am=
-24am^{2}
2 3 2