I'm having a bit of trouble isolating "v" in the following equation:
d = (v/g) * (v + sqrt(v^2 + 2gh ) )
Thank you in advance for your attention and time.
No. When expanding binomial squares you will get:
$\displaystyle (a+b)^2= a^2 + 2ab + b^2$
Remember that you get $\displaystyle \frac{dg}{v} \times -v = -dg$ as well as $\displaystyle -v \times \frac{dg}{v} = -dg$ which when you add them together you get -2dg