document.write( "Question 109849: Let f(x)=16-x^ and g(x)=4-x. Find f(x)+g(x). \n" ); document.write( "
Algebra.Com's Answer #80041 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "Let f(x) = 16 - x^ ….do you have here \"x%5E2\" or \"x\"?\r
\n" ); document.write( "\n" ); document.write( "if you have \"x%5E2\", then we have:\r
\n" ); document.write( "\n" ); document.write( "\"+f%28x%29+=+16+-+x%5E+2\"\r
\n" ); document.write( "\n" ); document.write( " and \"g%28x%29+=++4+-+x\" \r
\n" ); document.write( "\n" ); document.write( " to find \"f%28x%29+%2B+g%28x%29\".....substitute values for \"f%28x%29\" and \"g%28x%29\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+%2B+g%28x%29+=+%2816+-x%5E+2%29+%2B+%284-x%29\".....\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+%2B+g%28x%29+=+16+-x%5E+2+%2B+4+-+x\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+%2B+g%28x%29+=+-+x%5E2+-+x+%2B+20\"\r
\n" ); document.write( "\n" ); document.write( "if you have \"x\", then we will have:\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+%2B+g%28x%29+=+%2816+-x%29+%2B+%284+-+x%29\".....\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+%2B+g%28x%29+=+16+-x+%2B+4+-+x+\"..... \r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+%2B+g%28x%29+=+-+2x+%2B++20+\".....\r
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