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Mathematics 14 Online
OpenStudy (anonymous):

Given the functions f(x)=x+2 and g(x)=x^3, what is the value of f(x)g(x) for x=4? Thanks for the help!!

OpenStudy (anonymous):

A. 66 B. 70 C. 216 D. 384

OpenStudy (anonymous):

The answer is D 384

OpenStudy (anonymous):

you have to multiply f(x)g(x) so in order to do that you have to substitue 4 into x because they gave you the value of X

OpenStudy (anonymous):

You need to multiply (4+2(4^3)

OpenStudy (anonymous):

solve what's inside of the paratheses

OpenStudy (anonymous):

(4+2)(4^3)..4^3 is the same as 4X4X4

OpenStudy (anonymous):

Thank you soo much!!

OpenStudy (anonymous):

No problem. Oh and then you add 4+2= 6 and 4^3= 64.

OpenStudy (anonymous):

64(6)*

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