Question

I need help solving this question

Answer 1

f(x) + g(x)
2x² + x= 3x²
1+-7=-6
= 3x²-6

Answer 2

C.

Combine like terms when adding f(x) and g(x) 2x^2 + x^2 and 1 + (-7) = 3x^2 - 6