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OpenStudy (anonymous):

@DanJS

OpenStudy (anonymous):

i got f(x)= x^2+4x-8

OpenStudy (anonymous):

@DanJS

OpenStudy (danjs):

here, sorry

OpenStudy (anonymous):

its okay (: im pretty sure i did this right, i just want to double check

OpenStudy (danjs):

take a look here , this page explains it pretty good, http://mathmistakes.info/facts/CalculusFacts/learn/doi/doi.html

OpenStudy (danjs):

scroll down like half way

OpenStudy (anonymous):

wait i just did it again and i got a diff answer,f(x)= x^2+4x-12

OpenStudy (anonymous):

okk im looking

OpenStudy (danjs):

\[\frac{ d }{ dx} \int\limits_{0}^{x}(2t-4)dt = \frac{ d }{ dx }(t^2 -4t)_{0}^{x} = \frac{ d }{ dx }(x^2-4x) = 2x - 4\]

OpenStudy (danjs):

need 2 to x

OpenStudy (anonymous):

so it would be -12 right?

OpenStudy (anonymous):

yes?..

OpenStudy (danjs):

sorry, i cant remember what to do here

OpenStudy (anonymous):

hahah its fine, thank you

OpenStudy (danjs):

this is calc 1 right?

OpenStudy (anonymous):

yeah

OpenStudy (anonymous):

its fine i got it(:

OpenStudy (danjs):

k, i havent done this in years, lol i would have to review

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