已知:aˆ2-4b-4=0,aˆ2+2bˆ2=3,aˆ2b/2+2b要有消息过程啊.已知:aˆ2-4b-4=0,aˆ2+2bˆ2=3,aˆ2b/2+2b的值为?

问题描述:

已知:aˆ2-4b-4=0,aˆ2+2bˆ2=3,aˆ2b/2+2b
要有消息过程啊.已知:aˆ2-4b-4=0,aˆ2+2bˆ2=3,aˆ2b/2+2b的值为?