THE ANSWER IS -1
first, subtract the polynomials:
3x^2-7x+9-(2x^2+4x-8)
Remove parentheses
3x^2-7x-2x^2-4x+8
Combine like terms
The new polynomial is x^2-11x+17 (if you do RSM this is actually the answer to one of the fields on the HW)
Substitute for when x=2
2^2-11*2+17
Compute
4-22+17
4-5
-1
I know for a fact that the answer is -1, I entered this in myself and it was correct.
