The value of `(x^2+y^2)^0` is

If x^2+y^2-2x+6y+10=0 then the value of the (x^2+y^2) is -

If x,y are real and (x-1)^(2)+(y-4)^(2)=0 then the value of x^(3)+y^(3) is

If y ^(2)(y^(2) -6) + x ^(2) -8x +24 =0 and the minimum value of x ^(2) + y^(4) is m and maximum value is M, then find the value of M-2m.