Question

Which choices are equivalent to the expression below? Check all that apply.

Answer 1

$3\sqrt{6} = \sqrt{9}*\sqrt{6} = \sqrt{9*6} = \sqrt{54}$

The rule I'm using is

$\sqrt{x}*\sqrt{y} = \sqrt{x*y}$

note how I rewrote "3" into the square root of 9, so that everything would have a square root over it, and that allows me to use that rule above.