472634²+472635²-472633*472635-472634*472636简算
答案:2 悬赏:80 手机版
解决时间 2021-03-22 06:46
- 提问者网友:疯子也有疯子的情调
- 2021-03-21 17:48
简算题
最佳答案
- 五星知识达人网友:孤独的牧羊人
- 2021-03-21 18:29
解:原式=472634x472634+472635x472635-472633x472635-472634x472636
=472634x(472634-472636)+472635x(472635-472633)
=472634x(-2)+472635x2
=2x(-472634)+2x472635
=2x(-472634+472635)
=2x1
=2
=472634x(472634-472636)+472635x(472635-472633)
=472634x(-2)+472635x2
=2x(-472634)+2x472635
=2x(-472634+472635)
=2x1
=2
全部回答
- 1楼网友:平生事
- 2021-03-21 18:54
472634^2+472635^2-472633*472635-472634*472636
=472634^2+472635^2-(472634-1)*(472634+1)-(472635-1)*(472635+1)
=472634^2+472635^2-(472634^2-1)-(472635^2-1)
=472634^2+472635^2-472634^2+1-472635^2+1
=2
仅供参考,谢谢采纳
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