If m.n is the root of the linear equation with one variable, then m square n + Mn square - Mn =?

If m.n is the root of the linear equation with one variable, then m square n + Mn square - Mn =?


m. N is the root of univariate linear equation x square + 2010x-1 = 0, M + n = - 2010 nm = - 1 Mn + Mn Mn = Mn (M + n-1) = - 1 (- 2010-1) = 2011