document.write( "Question 1014574: Simplify. Identify any x values for which the expression is undefined :
\n" ); document.write( "#1). x^2-36/x^2-12x+36 , \r
\n" ); document.write( "\n" ); document.write( "#2). -x2^2-9x/4x^2-81 \r
\n" ); document.write( "\n" ); document.write( "Link to problems below just in case. Thanks show workk please \r
\n" ); document.write( "\n" ); document.write( "Link : http://prntscr.com/9s89xo
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Algebra.Com's Answer #630918 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Simplify. Identify any x values for which the expression is undefined :
\n" ); document.write( "#1). \"%28x%5E2-36%29%2F%28x%5E2-12x%2B36%29\"
\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). \"%28-x2%5E2-9x%29%2F%284x%5E2-81%29\"
\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
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