12335555cvusd 12335555cvusd

06-09-2019
Mathematics

contestada

if f(x)=5x^3 and g(x)=x+1, find (f.g)(x)

A. 5x^3+1
B. 5x^4+5x^3
C. 5x^4+1
D. 6x^3

Respuesta :

devishri1977 devishri1977

06-09-2019

Answer:

B. 5x^4+5x^3

Step-by-step explanation:

(f.g)(x) = f(x) * g(x) = 5x^3 * (x+1)

= 5x^3 * x + 5x^3 * 1

= 5x^4 + 5x^3

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