Why does ?

I get:

So by my logic I would just multiply ln|2x+5| by 3, why is the coefficient 3\2 then?

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- November 2nd 2012, 07:40 AMGreymalkinIntegration-guess and check
Why does ?

I get:

So by my logic I would just multiply ln|2x+5| by 3, why is the coefficient 3\2 then? - November 2nd 2012, 07:43 AMhediRe: Integration-guess and check
differentiation should be by the chain rule,so you need to multiply by the derivative of 2x