if there are two numbers with squares under a radical are both the squares canceled out by the radical?
Be careful here!!!!
We can "cancel" multiplication/division .....i.e., √[a^2 * b^2] = a * b or √[a^2/b^2] = a/b {assuming a and b are positive}
But .... we can't "cancel" addition/subtraction....
In general .... √[a^2 ± b^2] ≠ a^2 ± b^2
This is a common mistake....!!!!