Final answer:
The sum of the polynomials is -x + 5.
Step-by-step explanation:
To find the sum of two polynomials, we add the corresponding terms together. In this case, we have:
- 4x² – 8x + 10
- -4x² + 7x – 5
Adding the corresponding terms gives us:
- 4x² + (-4x²) = 0
- (-8x) + 7x = -x
- 10 + (-5) = 5
Therefore, the sum of the two polynomials is -x + 5.