Question

2sqrt(11) times 8sqrt (22) @phi

Answer 1

multiply them

you can use the rule that
\[ \sqrt{a}\cdot \sqrt{b}= \sqrt{a\cdot b} \]

Answer 2

sqrt(242)

Answer 3

don't forget the stuff out front

also, it is best not to actually multiply out 11*22
because you should factor the 22 into 2*11, so you have 11*11*2
because you want to find pairs to take out of the square root.