document.write( "Question 864585: Find the domain of the function:\r
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document.write( "f(x)= (x+15)/(x^2-289) \n" );
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Algebra.Com's Answer #521171 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Find the domain of the function: \n" ); document.write( "f(x)= (x+15)/(x^2-289) \n" ); document.write( "x^2-289=0 \n" ); document.write( "x=±√289 \n" ); document.write( "x=±7 \n" ); document.write( "domain: all real numbers except ±7 which makes the denominator=0 and the function undefined. \n" ); document.write( "In interval notation: (-∞,-7) U (7, ∞) \n" ); document.write( " |