document.write( "Question 1152207: if f(x)= x^2 - 2x+7, find find f(x+h)- f(x)
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Algebra.Com's Answer #774176 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "if \"f%28x%29=+x%5E2+-+2x%2B7\", \r
\n" ); document.write( "\n" ); document.write( "find \"f%28x%2Bh%29-+f%28x%29\"\r
\n" ); document.write( "\n" ); document.write( "first:\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%2Bh%29=%28x%2Bh%29%5E2+-+2%28x%2Bh%29%2B7\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%2Bh%29=x%5E2%2B2xh%2Bh%5E2+-+2x-2h%2B7\"\r
\n" ); document.write( "\n" ); document.write( "then\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%2Bh%29-+f%28x%29=x%5E2%2B2xh%2Bh%5E2+-+2x-2h%2B7-%28x%5E2+-+2x%2B7%29\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%2Bh%29-+f%28x%29=x%5E2%2B2xh%2Bh%5E2+-+2x-2h%2B7-x%5E2+%2B2x-7\"....simplify\r
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\n" ); document.write( "\n" ); document.write( "\"f%28x%2Bh%29-+f%28x%29=h%5E2%2B+2xh+-2h+\"\r
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