ASVAB Arithmetic Reasoning Practice Test 642377

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 8\( \sqrt{7} \) x 8\( \sqrt{3} \)?

64\( \sqrt{7} \)
16\( \sqrt{7} \)
64\( \sqrt{21} \)
16\( \sqrt{3} \)