打开App
360P
初中数学：怎么求x²-xy+y²的值？二次根式培优拓展题，学浪计划
初中数学：怎么求x²-xy+y²的值？二次根式基础巩固，培优拓展题
实数，无理数，平方根，立方根，二次根式，常考题培优专练261/419
App07:33
App08:25
App03:07
App03:56
App02:04
App02:36
App03:25
App02:43
App03:40
App03:23
App02:33
App04:05
App02:49
App03:14
App02:06
App04:55
App03:55
App02:30
App02:06
App02:30
App02:50
App03:54
App02:09
App03:08
App01:56
App03:19
App05:38
App03:23
App02:43
App03:36
App04:28打开App观看
![金溪县气象台更新高温橙色预警信号[II级/严重]](http://p26-sign.bdxiguaimg.com/tos-cn-p-0015/o4BZZi1BeIT2wiOAMDGfr6P2myoUB9gyamEkAA~tplv-pk90l89vgd-fglass:864:486:90.jpeg?appId=32&channelId=0&customType=custom%2Fnone&from=101_middle_image&imageType=list&isImmersiveScene=0&is_stream=0&lk3s=9d3f5bff&logId=20240909220427D5713A44ED95E6AB6562&requestFrom=101&x-expires=1757426667&x-signature=qxJg2fUhIH2jnFMsfUGloVjfFfQ%3D)
![巴南区气象台解除高温橙色预警[Ⅱ级/严重]](http://p3-sign.bdxiguaimg.com/tos-cn-p-0015/owniECiBHCfA1xBBkzsdAEPIVXiWOeAb9nB0ug~tplv-pk90l89vgd-fglass:864:486:90.jpeg?appId=32&channelId=0&customType=custom%2Fnone&from=101_middle_image&imageType=list&isImmersiveScene=0&is_stream=0&lk3s=9d3f5bff&logId=20240909220427D5713A44ED95E6AB6562&requestFrom=101&x-expires=1757426667&x-signature=gWEGGKomI2o19oubdXneanNSQAc%3D)
![犍为县气象台解除高温橙色预警信号[II级/严重]](http://p3-sign.bdxiguaimg.com/tos-cn-p-0015/okzREriWDZDal02aABBAIGb1eKzgoBTAQViyfH~tplv-pk90l89vgd-fglass:864:486:90.jpeg?appId=32&channelId=0&customType=custom%2Fnone&from=101_middle_image&imageType=list&isImmersiveScene=0&is_stream=0&lk3s=9d3f5bff&logId=20240909220427D5713A44ED95E6AB6562&requestFrom=101&x-expires=1757426667&x-signature=Izb0v%2FO8ANBNwA6ll1maoXQ6goM%3D)
