同类二次根式是什么意思(北师大版八年级二次根式典例精讲及二次根式专项练习)
同类2次根式就是指2个最简根式的根号下面的素质一样,比如根号2,和根号8,或者根号12与根号3之类的,根号8是2根号2,系数后面同样是根号2...
同类2次根式就是指2个最简根式的根号下面的素质一样,比如根号2,和根号8,或者根号12与根号3之类的,根号8是2根号2,...更多同类二次根式是什么意思的这个问题,以及大家所关心的北师大版八年级二次根式典例精讲及二次根式专项练习的内容,欢迎大家继续分享关注常识网。![同类二次根式是什么意思(北师大版八年级二次根式典例精讲及二次根式专项练习)](https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/9847b33774cc48dd81b32276455a8589~noop.image?_iz=58558&from=article.pc_detail&x-expires=1670170342&x-signature=FP9aWStxwqvzQzJEQM78xD%2BBdM8%3D)
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同类二次根式是什么意思
同类2次根式就是指2个最简根式的根号下面的素质一样,比如根号2,和根号8,或者根号12与根号3之类的,根号8是2根号2,系数后面同样是根号2同类二次根式是什么意思拓展阅读
北师大版八年级二次根式典例精讲及二次根式专项练习
二次根式中常用的两个重要公式:
1.二次根式的有关概念
(1)二次根式:
该式子称作二次根式。注意被开方数a只能是非负数。并且根式也是非负数。
(2)最简二次根式:
被开方数不含分母,不含能开得尽方的因数或因式,这样的二次根式,叫做最简二次根式。
(3)同类二次根式:
化成最简二次根式后,被开方数相同的几个二次根式,叫做同类二次根式。
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