Question

Simplify square root of 72

Answer 1

Six square roots of two

Answer 2

(square root of  72)  =  square root of (36  times  2)

That's the same as  (square root of  36)  times  (square root of  2).

But the square root of  36  is  6 .

So the square root of  72  is    (6)  times  (square root of  2) .