The correct answer is:
8x²-2x+2
Step-by-step explanation:
We combine like terms to answer this. We first combine our two terms with x²:
x²+7x² = 8x²
Next combine the terms with x:
-4x+2x = -2x
Now combine the constant terms:
5+(-3) = 2
Together, this gives us 8x²-2x+2