已知,√(3x+5y-2-m)+√(2x+3y-m) = √(x-196+y)*√(196-x-y) ,考察等式右边的定义域：x-196+y ≥ 0 ,196-x-y ≥ 0 ,因为,x-196+y 和 196-x-y 互为相反数,所以,x-196+y = 196-x-y = 0 ,则有：x+y = 196 ,可得：√(3x+...