If f(x) = 5x^3 - 2 and g(x) = 2x+1, find (f +g)(x). A. 5x2+2x-1 B. 10X° -2 C. 3x2 -1 D. 3x°-1

asked Jan 20, 2020 15.8k views

5 votes

If f(x) = 5x^3 - 2 and g(x) = 2x+1, find (f +g)(x).

A. 5x2+2x-1
B. 10X° -2
C. 3x2 -1
D. 3x°-1

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4 votes

Answer:

5x³ + 2x - 1

Explanation:

(f + g)(x)

= f(x) + g(x)

= 5x³ - 2 + 2x + 1 ← collect like terms

= 5x³ + 2x - 1

Jsignell answered Jan 24, 2020

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