document.write( "Question 331558: Find all numbers for which the rational expression is undefined. n^3-8n/n^2-49
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Algebra.Com's Answer #237642 by nyc_function(2741) $\"\"$ $\"About$

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To find which numbers will create a zero in the denominator (which number will make this rational function undefined), set denominator to zero and solve for n.\r
\n" ); document.write( "\n" ); document.write( "n^2 - 49 = 0\r
\n" ); document.write( "\n" ); document.write( "n^2 = 49\r
\n" ); document.write( "\n" ); document.write( "sqrt[n^2] = sqrt[49]\r
\n" ); document.write( "\n" ); document.write( "n = -7 and n = 7\r
\n" ); document.write( "\n" ); document.write( "The numbers that will make this function undefined are n = -7 and n = 7. \n" ); document.write( "

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