document.write( "Question 136623: I have a quesiton on how to fine the domain of a compostite funtion f*g\r
\n" ); document.write( "\n" ); document.write( "f(x) =x+6, g(x) =4/x+8\r
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\n" ); document.write( "\n" ); document.write( "i think it is x is not equal to -14
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Algebra.Com's Answer #100049 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
Remember f and g are functions, f(x) and g(x) are the values of those functions at x.\r
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\n" ); document.write( "\n" ); document.write( "\"f%28x%29=x%2B6\", \"g%28x%29=4%2F%28x%2B8%29\"\r
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\n" ); document.write( "\n" ); document.write( "(f°g)(x) = \"f%28g%28x%29%29=g%28x%29%2B6=%284%2F%28x%2B8%29%29%2B6\"\r
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\n" ); document.write( "\n" ); document.write( "(f°g)(x) = \"%284%2B6%28x%2B8%29%29%2F%28x%2B8%29=%286x%2B52%29%2F%28x%2B8%29\"\r
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\n" ); document.write( "\n" ); document.write( "So, for what values of x is (f°g) undefined? The domain is the rest of the real numbers.
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