m²*m m
--------- = --------
2m² 2
m²+m m(m+1) m+1
--------- = ---------------- = --------------
2m² 2m² 2m
m²-m m(m-1) 1
------------ = --------------- = -----------
m³-m² m²(m-1) m
m²-4 m²-2² (m-2)(m+2) m+2
------------ = --------------- = --------------------- = ------------
m²-2m m(m-2) m(m-2) m
3m-9 3(m-3) 3
-------------- = ----------------- = - -------
15-5m -5(m-3) 5