document.write( "Question 1007106: What values of x must be excluded in the algebraic fraction: x-5/x^2-x-12
\n" ); document.write( "A)3,-4 B)0,5 C)0,-5 D)-3,4 \n" ); document.write( "

Algebra.Com's Answer #623093 by josgarithmetic(39617) $\"\"$ $\"About$

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The fraction means $\"x-5%2Fx%5E2-x-12\"$ and the value for x which must be excluded is 0 only. \r
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\n" ); document.write( "\n" ); document.write( "Not what you meant to write for your fraction expression? Write it correctly.\r
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\n" ); document.write( "\n" ); document.write( "Were you missing the needed grouping symbols?
\n" ); document.write( "(x-5)/(x^2-x-12)
\n" ); document.write( "Very different, and will appear rendered as $\"%28x-5%29%2F%28x%5E2-x-12%29\"$ , which has a different set of undefined values for x than the way you wrote your expression.
\n" ); document.write( "The expression is undefined if the denominator is 0.\r
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\n" ); document.write( "\n" ); document.write( "Factorize the denominator and identify the values of x which make this denominator 0. That is WHAT to do.
\n" ); document.write( "Undefined for x at -3 and +4. \n" ); document.write( "

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