SOLUTION: Radical 630 equals what? perfect square of 625 is 25

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Question 594124: Radical 630 equals what? perfect square of 625 is 25
Answer by jsmallt9(3758) About Me  (Show Source):
You can put this solution on YOUR website!
Simplify square roots by finding perfect square factors. 9 is a perfect square and it is a factor of 630. So
sqrt%28630%29+=+sqrt%289%2A70%29
There are no other perfect square factors. Now we can use a property of radicals, sqrt%28a%2Ab%29+=+sqrt%28a%29%2Asqrt%28b%29, to split this square root:
sqrt%28630%29+=+sqrt%289%2A70%29+=+sqrt%289%29%2Asqrt%2870%29
The square root of 9 is 3 so we can replace it with a 3:
sqrt%28630%29+=+sqrt%289%2A70%29+=+sqrt%289%29%2Asqrt%2870%29+=+3%2Asqrt%2870%29
This is as far as this square root can be simplified.

BTW, 625 is 25 squared. Or 25 is the square root of 625. Not "perfect square of 625 is 25"