5个回答
国初新材料
2023-08-29 广告
2023-08-29 广告
Liqui-Cel 膜接触器用于有效去除液体中的气体或向液体中添加气体。典型应用是脱除O2和CO2。此外,膜接触器还能用于控制其他的溶解气体,例如,添加或去除氮气碳化、气体加湿、去除VOC等国初新材料(厦门)有限公司提供Liqui-Cel ...
点击进入详情页
本回答由国初新材料提供
展开全部
(m-n)(3m-n)²+(m+3n)²(n-m)
=(m-n)(3m-n)²-(m-n)(m+3n)²
=(m-n)[(3m-n)²-(m+3n)²]
=(m-n)(3m-n+m+3n)(3m-n-m-3n)
=(m-n)(4m+2n)(2m-4n)
=4(m-n)(2m+n)(m-2n)
=(m-n)(3m-n)²-(m-n)(m+3n)²
=(m-n)[(3m-n)²-(m+3n)²]
=(m-n)(3m-n+m+3n)(3m-n-m-3n)
=(m-n)(4m+2n)(2m-4n)
=4(m-n)(2m+n)(m-2n)
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
(m-n)(3m-n)²+(m+3n)²(n-m)
= (m-n)[3m-n)² - (m+3n)²]
= (m-n)(3m-n+m+3n)(3m-n-m-3n)
= (m-n)(4m+2n)(2m-4n)
= 4(m-n)(2m+n)(m-2n)
= (m-n)[3m-n)² - (m+3n)²]
= (m-n)(3m-n+m+3n)(3m-n-m-3n)
= (m-n)(4m+2n)(2m-4n)
= 4(m-n)(2m+n)(m-2n)
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
=(m-n)(3m-n)^2-(m-n)(m+3n)^2
=(m-n)[(3m-n)^2-(m+3n)^2]
=(m-n)(3m-n+m+3n)(3m-n-m-3n)
=(m-n)(4m+2n)(2m-4n)
=4(m-n)(2m+n)(m-2n)
=(m-n)[(3m-n)^2-(m+3n)^2]
=(m-n)(3m-n+m+3n)(3m-n-m-3n)
=(m-n)(4m+2n)(2m-4n)
=4(m-n)(2m+n)(m-2n)
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐于2020-12-09
展开全部
(m-n)(3m-n)²+(m+3n)²(n-m)
=(m-n)(3m-n)²+[-(m+3n)²(m-n)]
=(m-n)(3m-n)²-(m+3n)²(m-n)
=(m-n)[(3m-n)²-(m+3n)²]
=(m-n)[(3m-n)+(m+3n)][(3m-n)-(m+3n)]
=(m-n)(4m+2n)(2m-4n)
=4(m-n)(2m+n)(m-2n)
=(m-n)(3m-n)²+[-(m+3n)²(m-n)]
=(m-n)(3m-n)²-(m+3n)²(m-n)
=(m-n)[(3m-n)²-(m+3n)²]
=(m-n)[(3m-n)+(m+3n)][(3m-n)-(m+3n)]
=(m-n)(4m+2n)(2m-4n)
=4(m-n)(2m+n)(m-2n)
本回答被提问者采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询