If 4x+y=40, 2x-y=20, for integers of x and y, y^2=?
Choose the correct choice from the following choices
A) 2 B) 4 C) 0 D) 10 E) 3
4x+y = 40   2x-y = 20   6x = 60   x = 10   y = 0   y^2 = 0   Answer is 0
<result>C</result>
If 4x+y=40, 2x-y=20, for integers of x and y, y^2=?