ASVAB Arithmetic Reasoning Practice Test 657188

Question 1 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\( \sqrt{5} \) x 4\( \sqrt{5} \)?

160
12\( \sqrt{5} \)
12\( \sqrt{25} \)
32\( \sqrt{10} \)