@wydjasonX Sq E + 3 = 64
Sq E = 64 - 3
Sq E = 61
(Sq E)^2 = (61)^2
(Sq E)^2 = 3721
Sq 3721 + 3 = 64
61 + 3 = 64
E = Square root 3721
Square root of 3721 = 61
If you replace E by 3721 and you do its square root, you'll have 61, then add 3 to 61 and you'll get 64