Question

Find the square root of 2x2x5x5x7x7

Answer 1

Ohhh, look at this...

The square root of  (2 x 2) is  2 .

The square root of  (5 x 5) is  5 .

The square root of  (7 x 7) is  7 .

So the square root of  (2x2) x (5x5) x (7x7) is  (2 x 5 x 7) = 70.

(It could also be  -70,  for reasons that we don't have to mess with right now.)

Answer 2

You have to multiply all of them out which gives you 4,900 then you take the square root of that and your answer is 70.