document.write( "Question 109852: Let f(x)=16-x^ and g(x)=4-x. Find f(x)+g(x). \n" ); document.write( "
Algebra.Com's Answer #80038 by Edwin McCravy(20060)\"\" \"About 
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document.write( "Just add their right sides:\r\n" );
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document.write( "f(x) + g(x) = \"right side of f(x)\" + \"right side of g(x)\" \r\n" );
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document.write( "f(x) + g(x) = (16-x²) + (4-x)\r\n" );
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document.write( "Now simplify:\r\n" );
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document.write( "f(x) + g(x) = 16 - x² + 4 - x\r\n" );
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document.write( "f(x) + g(x) = 20 - x² - x\r\n" );
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document.write( "Arranging in descending order\r\n" );
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document.write( "f(x) + g(x) = -x² - x + 20\r\n" );
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document.write( "Edwin
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