The expression can be simplified to:
(m^2 + 1 - m^2 - 2m + m^2 + 2m + 1) / (m^2 + 1) + 4m / (m^2 + 1)
= (4m) / (m^2 + 1)
So the final simplified form of the expression is (4m) / (m^2 + 1)
8.5m questions
11.2m answers