化简:【a+b】²-c²分之a²-【b-c】²

问题描述:

化简:【a+b】²-c²分之a²-【b-c】²
是化简

【a+b】²-c²分之a²-【b-c】²
=a²+2ab+b²-b²+2bc-c²-a²/c²
=a²+2ab+2bc-c²-a²/c²;