document.write( "Question 841212: Determine the difference quotient f(x+h)-f(x)/ h. f(x)=9x^2-2\r
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Algebra.Com's Answer #506708 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!
Notation is important. You wrote this:
\n" ); document.write( " $\"f%28x%2Bh%29-f%28x%29%2F+h\"$
\n" ); document.write( "but you really mean this:
\n" ); document.write( " $\"highlight_green%28highlight_green%28%28f%28x%2Bh%29-f%28x%29%29%2F+h%29%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "Just form the expression using $\"f%28x%29=9x%5E2-2\"$ and simplify.
\n" ); document.write( " $\"%289%28x%2Bh%29%5E2-2-%289x%5E2-2%29%29%2Fh\"$
\n" ); document.write( " $\"%289%28x%5E2%2B2xh%2Bh%5E2%29-2-%289x%5E2-2%29%29%2Fh\"$
\n" ); document.write( " $\"%289x%5E2%2B18xh%2B9h%5E2-2-9x%5E2%2B2%29%2Fh\"$ ----look carefully in numerator for additive inverses
\n" ); document.write( " $\"%2818xh%2B9h%5E2%29%2Fh\"$
\n" ); document.write( " $\"highlight%2818x%2B9h%29\"$ \n" ); document.write( "

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