Question

algebra 0.01 help anyone?
see pic

Answer 1

is it some kind of cross multiplication or something?

Answer 2

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

Answer 3

First multiply by 64

Answer 4

\[540/512 a = 9a ^{4}\]

Answer 5

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

Answer 6

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

Answer 7

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

Answer 8

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