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