If x^2 + y^2 = 61 and (x + y)^2 = 121, find x and y.
Expand R equation
x^2 + 2xy + y^2 = 121 sub in first equation
x^2 + y^2 + 2xy = 121
(61) + 2xy = 121
xy = 30 6 and 5 come to mind
6 et 5 ausi pour moi
+36916 
