当2x+2y=-8,4x+y=66,求(x-y)^2-(3x+2y)^2的值

当2x+2y=-8,4x+y=66,求(x-y)^2-(3x+2y)^2的值
当2x+2y=-8,4x+y=66,求(x-y)^2-(3x+2y)^2的值

当2x+2y=-8,4x+y=66,求(x-y)^2-(3x+2y)^2的值
自己算的,希望能够帮助你!

x =
70/3
y =
-82/3
f =
2332
值为2332