document.write( "Question 1131446: 4/x+8 - 1/x-8=5x/x^2-64 I am needing help how to determine the values of the variable that makes a denominator zero,\r
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document.write( "Thanks so much!! \n" );
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Algebra.Com's Answer #748107 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! If it is 4/(x+8), when x=-8 the denominator is 0. Set the denominators to 0 and factor. The solutions will be the numbers not allowed in the domain.\r \n" ); document.write( "\n" ); document.write( "(x-8) in a denominator means x=8 is not allowed. \n" ); document.write( "x^2-64 factors into (x+8)(x-8), and +/-8 are not allowed. \n" ); document.write( " |