Differentiate this function f(x)= (4x)/(sqrt2x).

I know I use the quotient rule to differentiate this, this is what I have done so far:

(2x)^1/2 (0) - (4) [1/2(2x)^-1/2] divided by (2x)

0 - 2(2x)^-1/2 divided by (2x)

-(2x)^-1/2 divided by x

-2 divided by x^1/2 * x

-2 divided by sqrtx^3

Please help if something here is confusing because i dont know how to use Latex please tell I will try to show it more better.

Thanks