# math,bobpursly,

posted by
**jas20** on
.

4x-2x^2+4x^3 from 4x^3+x-3x^2

4x^3+x-3x^2

-( 4x-2x^2+4x^3)

then changing signs and rearranging terms.

4x^3+x-3x^2

-4x^3-4x+2x^2

answer after ADDING the above..

-3x - x^2

so for the answer isn't it the same as what i had

-x^2-3x doesnt' x^2 goes first then -3x