document.write( "Question 174008: c^2-3c-10/c^2+5c-14 * c^2-c-2/c^2-2c-15
\n" ); document.write( "How do you find the illegal values in those fractions. The equation before the slash is the numerator. \n" ); document.write( "

Algebra.Com's Answer #128921 by solver91311(24713) $\"\"$ $\"About$

You can put this solution on YOUR website!
You mean the expression before the slash is the numerator. A thing is not an equation unless it contains an equal sign somewhere.\r
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\n" ); document.write( "\n" ); document.write( " $\"%28%28c%5E2-3c-10%29%2F%28c%5E2%2B5c-14%29%29%28%28c%5E2-c-2%29%2F%28c%5E2-2c-15%29%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "By 'illegal' values, I presume you mean values that make the given relation undefined. Since these are rational expressions, you need to find the values of the variable that would make the denominators be zero.\r
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\n" ); document.write( "\n" ); document.write( "All you need to do is solve the two quadratic equations $\"c%5E2%2B5c-14=0\"$ and $\"c%5E2-2c-15=0\"$ . Fortunately, both of them factor to integer roots, so this shouldn't be a particularly onerous task.\r
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