Count Iblis what is the answer to 2 square root sign 18x? The instructions say to simplify or reduce.

Question

2*(18x)^1/2=
2*(9*2)^1/2=
2*3(2)^1/2=
6*(2)^1/2

If you can leave it in this form, the above is the way to end. If you are to continue to a final answer, then, finish by 6*1.414 =8.485.
6*(2)^1/2 is an exact answer.
8.485 is not exact because square root 2 is not an even number.