document.write( "Question 1004101: Find any value of the variable that make the expression undefined.\r
\n" ); document.write( "\n" ); document.write( "Problem 1# x^2+8x+15 / x^2+9x+18\r
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Algebra.Com's Answer #620696 by ikleyn(52855)\"\" \"About 
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\n" ); document.write( "Find any value of the variable that make the expression undefined.\r
\n" ); document.write( "\n" ); document.write( "Problem 1# x^2+8x+15 / x^2+9x+18\r
\n" ); document.write( "\n" ); document.write( "Problem 2# 4x+1 / x^2-5x+6
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\n" ); document.write( "\n" ); document.write( "1) \"%28x%5E2%2B8x%2B15%29%2F%28x%5E2%2B9x%2B18%29\".     x = -6 and x =-3  make the denominator equals zero and the ratio indefinite.\r
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\n" ); document.write( "\n" ); document.write( "2) \"%284x%2B1%29%2F%28x%5E2-5x%2B6%29\".     x = 2  and  x = 3  make the same.\r
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\n" ); document.write( "\n" ); document.write( "You simply need to find zeroes of denominators.\r
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