document.write( "Question 246643: Find all numbers for which the rational expression is undefined t^3-6t/t^2-9 \n" ); document.write( "
Algebra.Com's Answer #180036 by stanbon(75887)\"\" \"About 
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Find all numbers for which the rational expression is undefined t^3-6t/t^2-9
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\n" ); document.write( "The denominator cannot be zero.
\n" ); document.write( "t^2-9 = 0
\n" ); document.write( "when
\n" ); document.write( "t = 3 or t = -3
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\n" ); document.write( "The expression is undefined if t = 3 or if t = -3.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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