A1.H.1Add & subtract polynomials01/05
Add and subtract polynomials.
Simplify
(3x2+2x−1)−(x2−4x+5)
Step01of 05
Adding polynomials = combining like terms. Same variable, same power → can be combined. Different power → can't.
| 3x2 and −x2 | →like (both x²) |
| 2x and −4x | →like (both x) |
| −1 and 5 | →like (both constants) |
| 3x2 and 2x | →NOT like (different power) |