Answer:
2x^2 + 3
Step-by-step explanation:
Subtracting functions is similar to subtracting normal numbers. An easy way to do it is to put one over the other and then combine like terms.
4x^2 + 2
- 2x^2 - 1
= 2x^2 + 3
Even though it looks like you would do 2-1, the three is because you're adding -(-1) (aka 1) to 2.
