There are two of them.
One is positive 0.25 .
The other is negative 0.25 .
The square (not sqare) root is approx 23031.054
1.772453850905516027298167483314
12768.
16
9.84
No, it is not.
It is: 400
37
51
6.2449979983983982058468931209398
3.60555127546398
6.4031242