Answers

2014-08-19T09:48:51+08:00
Try lng.
3x+5x-9x+7x-4x
=3x+5x+7x-4x-9x
=15x-13x
=2x


1 5 1
yeah thnks... how about 4-5x3+6x2-4x;5x4-7x+5-6x?
x3=represent for x cube
x2=represent x squared and x4=represent x fourth
(3x + 5x + 7x) - 13x
ok..thanks
2014-08-19T10:06:55+08:00
3x+5x=8x
8x+(-9x)=-x
-x+7x=6x
6x-4x=2x
0
yeah thnks... how about 4-5x3+6x2-4x;5x4-7x+5-6x?,,x3=represent for x cube ,,x2=represent x squared and x4=represent x fourth