how do i simplify this?

Question

(3√24)-(3√54)-(2√

24)

Answer 1

3√24-3√54-2√24=√24-3√54=√(6×4)-3√(6×9)=2√6-9√6=-7√6

Let me be honest.  The way I first did this was

3√24-3√54-2√24=√24-3√54=√3√8-9√6=2√3√2-9√2√3=-7√2√3

Answer 2

3√24-3√54-2√24

3√(4*6)-3√(9*6)-2√(4*6)

3*2√6-3*3√6-2*2√6

6√6-9√6-4√6

(6-9-4)√6

-7√6