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April 17, 2014

April 17, 2014

Posted by **Brenda** on Tuesday, September 17, 2013 at 11:42pm.

- Math (College Pre-Cal) -
**Reiny**, Wednesday, September 18, 2013 at 12:31amI will assume that you meant

f(x) = (x+7)/(x-13) and g(x) = 1/(x+1)

Those brackets are very critical in this text format.

f o g = f( g(x) )

= (1/(x+1) + 7)/(1/(x+1) - 13)

multiply top and bottom by x+1

= (1 + 7(x+1))/)1 - 13(x+1) )

= (7x + 8)/(-13x - 12)

or

-(7x+8)/(13x - 12)

g o f = g( f(x) )

= .....

follow the same steps I used in the first example

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