document.write( "Question 335499: How do I find the domain of the function F(x)=(8x+12)/(x^2=5x+4) \n" ); document.write( "

Algebra.Com's Answer #240466 by Fombitz(32388) $\"\"$ $\"About$

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It's all x values for which f(x) is defined.
\n" ); document.write( "f(x) is undefined when the denominator equals zero.
\n" ); document.write( "Solve $\"x%5E2%2B5x%2B4=0\"$
\n" ); document.write( " $\"%28x%2B1%29%28x%2B4%29=0\"$
\n" ); document.write( "Two solutions: $\"x%2B1=0\"$
\n" ); document.write( " $\"x=-1\"$
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\n" ); document.write( " $\"x%2B4=0\"$
\n" ); document.write( " $\"x=-4\"$
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\n" ); document.write( "The domain is therefore all x values except $\"x=-1\"$ and $\"x=-4\"$ . \n" ); document.write( "

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