Use f(x)=3x-2 and g(x)=3+2x^2 to evaluate the expression (fog)(2)

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Use f(x)=3x-2 and g(x)=3+2x^2 to evaluate the expression (fog)(2)

[From: ] [author: ] [Date: 11-06-06] [Hit: ]

3(3+2(2)^2)-2. =.......

very confused, please help!

In f(x), put g(x) in for x Then the x that's in g(x) that u put in f(x), make it 2.
3(3+2(2)^2)-2. =. 3(11)-2 = 31

fog(2) = f( g(2) ) = f( 11 ) = 31

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