Algebra help
posted by Shawn .
Find (fog)(x)and (gof)(x)if f(x)=xx^2 and g(x)= 2x+3.
Okay so I did the following:
For f(of)g(x), take (2x+3)  (2x+3)^2
(insert g(x) where the "x" is in f(x) )
For g(of)f(x), take 2[xx^2] +3
The first answer that I get for (2x+3)  (2x+3)^2 is 4x^212x9
The second answer that I get for
2[xx^2] +3 is 2x2x^2+3
are these the answers to the problem?
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