(4m+2n)(2m+4n)算到这一步时怎么做 原题是9(m+n)^2-(m-n)^2
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(4m+2n)(2m+4n)算到这一步时怎么做 原题是9(m+n)^2-(m-n)^2
(4m+2n)(2m+4n)算到这一步时怎么做 原题是9(m+n)^2-(m-n)^2
(4m+2n)(2m+4n)算到这一步时怎么做 原题是9(m+n)^2-(m-n)^2
9(m+n)²-(m-n)²
=[3(m+n)]²-(m-n)²
=[3(m+n)+(m-n)]×[3(m+n)-(m-n)]
=(4m+2n)(2m+4n)
=[2(2m+n)]×[2(m+2n)]
=4(2m+n)(m+2n)
(4m+2n)(2m+4n)算到这一步时怎么做 原题是9(m+n)^2-(m-n)^2
(3m-4n)(4n+3m)-(2m-n)(2m+n)
[(m+n)(m-n)-(m-n)²+2n(m-n)]÷4n
【(m+n)(m-n)-(m-n²)+2n(m-n)】÷4n
(n/m+n/2m^2)*4m/n^2
因式分解4m^2(m-n)+4n(n-m)
4m(m-n)^2+4n(n-m)^3
[(m-n)^2*(m-n)^3]^2/(m-n)^4
[(m-n)^2*(m-n)^3]^2/(m-n)^4
4m^2(m+n)-9n^2(m+n)
(m-n)2(n-m)3(n-m)4化简
化简,1.[(m+n-p)(m+p+n)-(m+n)²]/(-p),2.[(m+n)(m-n)-(m-n)²+2n(m-n)]/4n
(m-n)^2*(m-n)^4=?
4m(m-m)-2n(n-m)
1/(m-n)-1/(m+n)-2n/(m^2+n^2)-4n^3/m^4+n^4)-8n^7/(m^8+n^8)-16n^15/(m^16+n^16)+32n^31/(n32-m32)
已知3m=4n,则m/m+n+n/m-n-m^2/m^2-n^2=
(m+n)^2-4m(m+n)+4m 因式分解(m+n)^2-4m(m+n)+4m因式分解
(m-2n)(2n+m)-(-3m-4n)(4n-3m)=