Question

What's is the square root of 63

Answer 1

You want to be finding out what two factors (where one of them is a perfect square) has the produce of 63. It seems like 9 x 7 (9 is the perfect square) works.


`√(63) = √(9 * 7) = √(9) * √(7)`

The square root of 9 is 3 so we can just have
`3 √(7)` (which just means 3 times the square root of 7).