document.write( "Question 1014574: Simplify. Identify any x values for which the expression is undefined :
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document.write( "#1). x^2-36/x^2-12x+36 , \r
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document.write( "#2). -x2^2-9x/4x^2-81 \r
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document.write( "Link to problems below just in case. Thanks show workk please \r
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Algebra.Com's Answer #630918 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Simplify. Identify any x values for which the expression is undefined : \n" ); document.write( "#1). \n" ); document.write( "the expression is undefined when the denominator = 0, therefore find x when \n" ); document.write( "x^2 - 12x +36 = 0 \n" ); document.write( "factors to \n" ); document.write( "(x-6)(x-6) = 0 \n" ); document.write( "when x = 6 the expression undefine \n" ); document.write( ": \n" ); document.write( "Same with this one \n" ); document.write( "#2). \n" ); document.write( "4x^2 - 81 = 0 \n" ); document.write( "this is the \"difference of squares, it factors to: \n" ); document.write( "(2x - 9)(2x + 9) = 0) \n" ); document.write( "2x = +9 \n" ); document.write( "x = 4.5 \n" ); document.write( "or \n" ); document.write( "2x = -9 \n" ); document.write( "x = -4.5; makes the expression undefined \n" ); document.write( " |