Question

If (f + g)(x) = 3x2 + 2x – 1 and g(x) = 2x – 2, what is f(x)?

Answer 1

A.

3x2 + 1

Explanation:

Answer 2

To answer this, subtract g(x) = 2x – 2 from (f + g)(x) = 3x2 + 2x – 1:

(f + g)(x) = 3x2 + 2x – 1
- g(x) =-(2x-2)
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3x^2 + 1 (answer) (This is f(x).)