(ax+2a^2-2a^2+1)/(x+2a)怎么化简成a-(2a²-1)/(x+2a)

问题描述:

(ax+2a^2-2a^2+1)/(x+2a)怎么化简成a-(2a²-1)/(x+2a)

原式={a(x+2a)-(2a²-1)}/(x+2a)=a-{(2a²-1)/(x+2a)}=a-(2a²-1)/(x+2a)