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Given f(x)=-6x-1 and g(x)=x^3,choose the expression for (f g)(x) A.-18x^3-3 B.-6x^3-1 c.-6x^3-1x^3 D.(-6x-1)^3
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Given f(x)=-6x-1 and g(x)=x^3,choose the expression for (f g)(x)

A.-18x^3-3
B.-6x^3-1
c.-6x^3-1x^3
D.(-6x-1)^3

User Luigi Saggese
by
8.4k points

2 Answers

3 votes
I hope this helps you f (g (x))=f (x^3)=? x=x^3 f (x^3)= -6.x^3-1
User Fred Faust
by
8.2k points
1 vote
The answer is B. You have to substitute x^3 into the equation for f(x) giving you B.
User ForTruce
by
7.6k points
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