[Math] Re-arranging an equation with a square root

Question

I need to re-arrange the following equation to make $d$ the subject [i.e., solve for $d$]:

$$a = \sqrt{\frac{d}{be}}.$$

The square root part is really confusing me, any help would be much appreciated.

Answer 1

Ok. Squaring both sides you obtain $$a^{2} = \frac{d}{be} \Longrightarrow d = (be) \times a^{2}$$