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March 4, 2015

March 4, 2015

Posted by **Shawn** on Sunday, November 30, 2008 at 6:22pm.

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[x-x^2] +3

The first answer that I get for (2x+3) - (2x+3)^2 is -4x^2-12x-9

The second answer that I get for

2[x-x^2] +3 is 2x-2x^2+3

are these the answers to the problem?

- Algebra help -
**drwls**, Sunday, November 30, 2008 at 8:06pmYou did not subtract the terms correctly for f(of)g(x). You only did the (2x+3)^2 calculation.

Your g of f(x) is correct

- Algebra help drwls -
**Shawn**, Sunday, November 30, 2008 at 9:09pmfor f of g(x) I have -4x^2-10x-6

Is this right?

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