how do i simplify this?

Answer:
36x^2
Step-by-step explanation:
Let's first get rid of the 4 in the denominator by simplifying.
(4sqrt(9x^3))/(sqrt(4x))
Now square the top and bottom to get rid of square roots.
16(9x^3)/(4x)
Simplify again.
4(9x^2)
Combine
36x^2