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put it in a lan

an devide it in its derivative?

even if i got a fuction

1/(x+2)^2

its integral solves [(x+2)^-1]/-1

or i can open this equetion (a+b)^2=x^2+2*x*2+2^2

then put it all in a lan ln(x^2+2*x*2+2^2) and i will devide it by it derivative

2x+4

ln(x^2+2*x*2+2^2)/2x+4

what is my red sigh

how do i deside to what way to go???