F(x) = 3x + 9, g(x) = 5x2 Find (f + g)(x).

asked Dec 14, 2017 114k views

4 votes

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Answer:

5x^2 + 3x +9

Explanation:

$f(x) = 3x + 9\\g(x) = 5x^2$

$(f+g)(x)\\f(x) + g(x)$

3x+9 + 5x^2

5x^2 + 3x +9

7.6k points

5 votes

f(x) = 3x + 9
g(x) = 5x²

(f + g)(x) = (3x + 9) + 5x²
(f + g)(x) = 3x + 9 + 5x²
(f + g)(x) = 5x² + 3x + 9

Mike Moore answered Dec 18, 2017

8.1k points

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