From the Pythagorean Theorem, the length of the adjacent side to θ is ....

Question

From the Pythagorean Theorem, the length of the adjacent side to θ is

adj = square root(7^2-5^2)

= square root(24)

= 2 square root(6).

My question is how did they get the last part of the question? The 2 times the square root of 6?

Answer 1

24 = 2² * 6

sqrt(24) = sqrt(2² * 6) = 2√6