计算:(1/m²)+m-2/2m²-2)

问题描述:

计算:(1/m²)+m-2/2m²-2)

(1/m²)+(m-2)/(2m²-2)
=(2m²-2)/(2m²-2)m²+(m-2)m²/(2m²-2)m²
=[2m²-2+m^3-2m²/]/(2m²-2)m²
=(m^3-2)/(2m²-2)m²