I cannot figure out how to get to the solution of 12/5 for the equation:

2x(4-x)^-1/2 - cube root(4-x)= 0

Sorry, I do not know how to write the cube root.

I tried to write the equation in different ways by using the laws

x^-1/2 = 1/x^1/2

or

cube root(x) = x^1/3

but that does not help me.

Any idea that would help me to get in the right direction?

Thanks