yes you are correct are you good at counterexample
A^2 - b^2 = (a+b)(a-b)
answer :
t^2 - 1
n^2 - 225
The answer is 3 square units
12. On addition, you can just combine like terms.
2v^3+(-v^3)=v^3
-v+v cancels each other out
8+(-3)=5
So you have v^3+5
14 On subtraction, you have to remember to distribute the negative sign so after you do that you have:
4h^3+3h+1+5h^3-6h+2
Then you can combine like terms
4h^3+5h^3=9h^3
3h-6h=-3h
1+2=3
So you end up with:
9h^3-3h+3
Hope that helps and feel free to ask any questions.
The first blank on the left side should be 0 I think
