ASVAB Arithmetic Reasoning Practice Test 580487

Question 3 of 5
Multiplying & Dividing Radicals

To multiply or divide radicals, multiply or divide the coefficients and radicands separately: \(x\sqrt{a} \times y\sqrt{b} = xy\sqrt{ab}\) and \({x\sqrt{a} \over y\sqrt{b}} = {x \over y}\sqrt{a \over b}\)

What is 6\( \sqrt{6} \) x 9\( \sqrt{5} \)?

15\( \sqrt{6} \)
15\( \sqrt{5} \)
54\( \sqrt{30} \)
54\( \sqrt{5} \)