document.write( "Question 890532: 4x+3/ x2-6x+8\r
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Algebra.Com's Answer #539045 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
The rational expression is undefined when the denominator is zero. So set that equal to zero and solve for x\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2-6x%2B8=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28x-4%29%28x-2%29=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"x-4=0\" or \"x-2=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=4\" or \"x=2\"\r
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\n" ); document.write( "\n" ); document.write( "The rational expression is undefined when either \"x=4\" or \"x=2\" since these values cause the denominator to be zero (and you cannot divide by zero)
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