1) First notice that we have the following expressions that are always true:
We also know that:
Using square root on the whole equality we get:
therefore, the square root of 39 is between 6 and 7.
2)for the square root of 600, we have the following:
since the square root of 625 is the minimum number that has an integer as a solution, we have that the square root of 600 is between 24 and 25