Answer:
[tex]8x^3+x^2+3[/tex]
Step-by-step explanation:
In order to solve this you just have to put together the numbers witht the same base and exponent and then you just add and withdraw, and you can do it like this:
[tex]""7x^3-x^2+1\\+x^3+2x^2+2\\\\------\\8x^3+ x^2+3[/tex]
So the answer would be :[tex]8x^3+x^2+3[/tex]
