Re-arranging an equation with a square root

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.

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@Dennis: What you mean, when you say : Make $d$ the subject –  anonymous Nov 18 '10 at 21:34
So as the equation is re-arranged to be d = –  Dennis Henry Nov 18 '10 at 21:35

Ok. Squaring both sides you obtain $$a^{2} = \frac{d}{be} \Longrightarrow d = (be) \times a^{2}$$
@Dennis: According to your notation $a=M^{2}b^{2}e^{2}$ –  anonymous Nov 18 '10 at 21:48