document.write( "Question 200612: h(x)= x-3/x^3-4x\r
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document.write( "What is the domain of the function \n" );
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Algebra.Com's Answer #150860 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( ". \n" ); document.write( "Domain specifies the values 'x' can take. \n" ); document.write( "The only thing we have to worry about is if the denominator goes to zero. \n" ); document.write( ". \n" ); document.write( "So, set the denominator to zero and solve for x: \n" ); document.write( "x^3-4x = 0 \n" ); document.write( "x(x^2-4) = 0 \n" ); document.write( ". \n" ); document.write( "So, the denominator goes to zero if: \n" ); document.write( "x=0 or x^2-4=0 \n" ); document.write( ". \n" ); document.write( "Therefore, \n" ); document.write( "x = all real numbers EXCEPT: x=0, x=-2, x=2 \n" ); document.write( " \n" ); document.write( " |