Answered

(5x³+3x²-x+1)-(2x³+x-5)

Sagot :

Do the operation as usual.

           5x³    +3x²     -x     +1
+       -2x³                -x      +5
=        3x³     +3x²    -2x    +6

Change the operation and the sign of the terms of the second polynomial.