document.write( "Question 468428: I need to determine the domain of the given function\r
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document.write( "f(x) = 4x divided by x^ -x -12 \n" );
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Algebra.Com's Answer #321429 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! I need to determine the domain of the given function \n" ); document.write( "f(x) = 4x divided by x^ -x -12 \n" ); document.write( "... \n" ); document.write( "f(x)=4x/(x^2-x-12) \n" ); document.write( "To determine domain, set denominator = 0, then solve for x \n" ); document.write( "x^2-x-12=0\r \n" ); document.write( "\n" ); document.write( "(x-4)(x+3)=0 \n" ); document.write( "x-4=0 \n" ); document.write( "or \n" ); document.write( "x=-3 \n" ); document.write( "Domain: \n" ); document.write( "x≠4 or x≠-3 \n" ); document.write( "in interval notation. \n" ); document.write( "(-∞,-3) U (-3,4) U (4,∞) \n" ); document.write( " |