(5)^-1/2 * (5x)^5/2 (5x)^-3/2

Simplifies to
1/5 * �ã5x^5(1/�ã5x^3)
My final answer is x/�ã5 is that correct?

Try again. I think you'll have √5 x

(5x)^5/2 (5x)^-3/2 = (5x)