化简:(a+1)²-2(a+1)(a-1)-6

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/30 05:53:31
化简:(a+1)²-2(a+1)(a-1)-6
x){3{fi$jj)9f6IE(/!< l㌴F`LX"kl_\g$<

化简:(a+1)²-2(a+1)(a-1)-6
化简:(a+1)²-2(a+1)(a-1)-6

化简:(a+1)²-2(a+1)(a-1)-6
:(a+1)²-2(a+1)(a-1)-6
=a^2+2a+1-2a^2+2-6
=-a^2+2a-3