document.write( "Question 515507: Find all numbers for which the rational expression is undefined. t^3-7t/t^2-25 \n" ); document.write( "
Algebra.Com's Answer #344008 by lwsshak3(11628)\"\" \"About 
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Find all numbers for which the rational expression is undefined. t^3-7t/t^2-25
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\n" ); document.write( "(t^3-7t)/(t^2-25)
\n" ); document.write( "set denominator=0
\n" ); document.write( "t^2-25=0
\n" ); document.write( "t^2=25
\n" ); document.write( "t=±√25=±5
\n" ); document.write( "ans:
\n" ); document.write( "expresssion is undefined at x=5 and x=-5 \n" ); document.write( "
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