4 years ago

If f(x)=3x^2-4x-5, find (f(x+h)-f(x))/h

1 answer:

3 0

3(x^2 +2xh + h^2) -4(x + h) -5
(3x^2 + 6xh + 3h^2 -4x -4h -5 - ( 3x^2 -4x -5))/h
(6xh + 3h^2 -4h)/h
h(6x +3h - 4)/h
6x + 3h -4

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