What must be subtracted from 4x3−3x+5 to get 2x2−3x3+5x−2?
- - 8x + 7
To get the required algebraic expression we will subtract 2x2−3x3+5x−2 from 4x3−3x+5.
4x3−3x+5
−3x3+5x−2+2x2
+ − + −
________________________
7x3−8x+7−2x2
So, the required algebraic expression is 7x3−2x2−8x+7.