(-12x^3-8x^2- 7) + (6x^3+ 9x^2-x)

Asked by AnneS2 12 years ago 4/15/2013 2:50 AM

Last updated by anonymous 12 years ago 4/17/2013 1:13 AM

Answered by CherieS 12 years ago 4/17/2013 1:13 AM

=(-12x^3-8x^2- 7) + (6x^3+ 9x^2-x)

=(-12x^3-8x^2- 7) + 6x^3+ 9x^2-x

=-12x^3-8x^2- 7 + 6x^3+ 9x^2-x

=-12x^3+ 6x^3 -8x^2+ 9x^2 -x - 7

=-6x^3 +1x^2 -x -7