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September 22, 2014

September 22, 2014

Posted by **Kristi** on Sunday, September 30, 2012 at 8:07pm.

- Algebra -
**bobpursley**, Sunday, September 30, 2012 at 8:17pmf(x)=3x^2-6x

f(x+h)=3(x+h)^2 -6(x+h)

= 3x^2+6xh+3h^2-6x-6h

so f(x+h)-f(x)= 0x^2-0x+6xh-3h^2-6h

dividing that by h then

6x-3h-6

as h approaches zero, then the difference quotent= 6x-6

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