2 2 121*m *n - 22*m*n + 1
(121*m^2)*n^2 - 22*m*n + 1
1 m - ---- 11*n
m - 1/(11*n)
2 2 1 - 22*m*n + 121*m *n
1 - 22*m*n + 121*m^2*n^2
1 + 11*m*n*(-2 + 11*m*n)
2 (-1 + 11*m*n)
(-1 + 11*m*n)^2
1.0 + 121.0*m^2*n^2 - 22.0*m*n