ASVAB Arithmetic Reasoning Practice Test 462682

Question 4 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 9\( \sqrt{2} \) x 6\( \sqrt{6} \)?

15\( \sqrt{2} \)
54\( \sqrt{6} \)
108\( \sqrt{3} \)
54\( \sqrt{2} \)