document.write( "Question 92102: Find the values that make the rational expression undefined.\r
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Algebra.Com's Answer #66946 by funmath(2933)\"\" \"About 
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Find the values that make the rational expression undefined.\r
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\n" ); document.write( "Anything that would make the denominator =0 would make the expression undefined:
\n" ); document.write( "\"r%5E2-r-6=0\"
\n" ); document.write( "Factor.
\n" ); document.write( "\"%28r-3%29%28r%2B2%29=0\"
\n" ); document.write( "Set each factor = to 0 and solve for r.
\n" ); document.write( "r-3=0 or r+2=0
\n" ); document.write( "r-3+3=0+3 or r+2-2=0-2
\n" ); document.write( "r=3 or r=-2
\n" ); document.write( "Makes the expression undefined.
\n" ); document.write( "Happy Calculating!!!!
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