sqrt27xy^3/sqrt9x

I'm getting 3 answers to this.
yxsqrt3y/x, ysqrt3xy/3x, and 3sqrt3y

Can anyone please tell me which one is correct?

1 answer

One major problem is that you don't use brackets, so we have no way of knowing the order of operation you want.
let's start at the top

√(27xy^3) / √(9x)
= √(3y^3_
= y√(3y)

None of your answers resemble that.