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01-07-2019
Mathematics

contestada

If f(x) = 3x^2
and g(x) = x+2, find (f•g)(x).
A. 3x3 +6x
B. 3x2 +6x
c. xi +2
D. 3x3 +6x2

Respuesta :

06-07-2019

Answer:

D. (f · g)(x) = 3x³ + 6x²

Step-by-step explanation:

(f · g)(x) = f(x) · g(x)

We have f(x) = 3x² and g(x) = x + 2. Substitute:

(f · g)(x) = (3x²) · (x + 2) use the distributive property

(f · g)(x) = (3x²)(x) + (3x²)(2)

(f · g)(x) = 3x³ + 6x²

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