algebra 0.01 help anyone?
see pic

Question

anonymous · Answer

is it some kind of cross multiplication or something?

anonymous · Answer

how do you get from the first bit to teh second bit is my question

anonymous · Answer

First multiply by 64

anonymous · Answer

$$540/512 a = 9a ^{4}$$

anonymous · Answer

Sometimes it is not necessary to simplify, do it later
9a^4=[9(64)a]/8
Next you divide both sides by a and by 9

anonymous · Answer

a cubed = 64/8
i guess that was easier than i thought

anonymous · Answer

It is just a little algebra, as in solving for x. You get x (or a) on one side and everything else on the other.
A final step from your handwritten note is take the cube root of each side
a^3=8
a    =2

anonymous · Answer

oh i knew what to call it, just couldn't see how it was done in one step... thanks