Answer :

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.
AL2006
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.)

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