Hi guys, I'm stuck on something trivial.
letting x = (u-4)^2
I get to the correct solution in terms of u: 2u - 8ln|u| + c
However, my confusion begins when changing the answer back to be in terms of x. Since x = (u-4)^2 , u = x^(1/2)+4 OR u =-x^(1/2)+4
So shouldn't there be two solutions in...