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January 27, 2015

January 27, 2015

Posted by **Devin** on Thursday, November 29, 2012 at 3:03pm.

F(a+h) - f(a) / h ;

1. f(x) = x^2 + 5x -10

- Algebra2 -
**Steve**, Thursday, November 29, 2012 at 3:30pmf(a+h) = (a+h)^2 + 5(a+h) - 10

f(a) = a^2 + 5a - 10

(f(a+h)-f(a))/h

= (a^2 + 2ah + h^2 + 5a + 5h - 10 - a^2 - 5a + 10)/h

= (2ah + h^2)/h

= 2a + h

- Algebra2 -
**Steve**, Thursday, November 29, 2012 at 3:31pmoops

(2ah + 5h + h^2)/h

= 2a + 5

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