document.write( "Question 981953: Please Help. Let $\"f%28x%29=2x%5E2-2x\"$ \r
\n" ); document.write( "\n" ); document.write( "Simplify $\"%28f%28x%2Bh%29-f%28x%29%29%2Fh\"$ \r
\n" ); document.write( "\n" ); document.write( "Answer: 4x+2h-2
\n" ); document.write( "But how? I have tried:
\n" ); document.write( " $\"%28fx%2Bfh%29-f%28x%29%29%2F%28h%29\"$
\n" ); document.write( " $\"%28%282x%5E2-2x%29%2Bfh-%282x%5E2-2x%29%29%2Fh\"$
\n" ); document.write( " $\"%28%282x%5E2-2x%29%2Bfh-2x%5E2%2B2x%29%2Fh\"$
\n" ); document.write( " $\"fh%2Fh\"$ \n" ); document.write( "

Algebra.Com's Answer #602845 by AnlytcPhil(1806) $\"\"$ $\"About$

You can put this solution on YOUR website!
Question 981953
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document.write( "You are thinking that f(x) means f times x.  \r\n" );
document.write( "Please get rid of that idea now. f(x) does NOT mean f times x.\r\n" );
document.write( "The (x) is just a place holder for whatever is going to be\r\n" );
document.write( "substited for x on the right side of the equation.\r\n" );
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document.write( "Here's an example just like yours that you can go be as a model:\r\n" );
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document.write( "Simplify .\r\n" );
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document.write( "Do it in stages.  Find f(x+h), then f(x+h)-f(x), then .\r\n" );
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document.write( "First find f(x+h\r\n" );
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document.write( "So\r\n" );
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document.write( "and since\r\n" );
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document.write( "So\r\n" );
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document.write( "Then finally find \r\n" );
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document.write( "we divide that by h:\r\n" );
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document.write( "So\r\n" );
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document.write( "Edwin

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