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来源:学生作业学帮网 编辑:学帮网 时间:2024/05/13 08:29:19
(1),(-m-n)(-m+n)(2),(-m+n)(m-n)我又来了~
(m-2n)(-m-n)(m-2n)(-m-n)=-m²+2mn-mn+2n²=-m²+mn+2n²
[(m-n)^2*(m-n)^3]^2/(m-n)^4设m-n为a(a^2*a^3)^2/a^4=a^6即(m-n)^6
[(m-n)^2*(m-n)^3]^2/(m-n)^4原式=[(m-n)∧(2+3)]∧2/(m-n)∧4=(m-n)∧10/(m-n)∧4=(m-n)∧6
3m(m-n)-2n(m-n)的平方3m(m-n)-2n(m-n)²=(m-n)(3m-2mn+2n²)3m(m-n)-2n(m-n)的平方=(m-n)[3m-2n(m-n)]=(m-n)(2n^2+3m-2mn)
因式分解(n-m)^3(m-n)^2-(m-n)^5解原式=-(m-n)³(m-n)²-(m-n)^5=-(m-n)^5-(m-n)^5=-2(m-n)^5
(m-n)2(n-m)3(n-m)4化简(m-n)2(n-m)7
(n-m)^3×(m-n)^2-(m-n)^5(n-m)^3×(m-n)^2-(m-n)^5=-(m-n)^3*(m-n)^2-(m-n)^5=-(m-n)^5-(m-n)^5=-2(m-n)^5
计算(m+n)^3-(n+m)(m-n)^2(m+n)^3-(n+m)(m-n)^2=(m+n)[(m+n)^2-(m-n)^2]=(m+n)[(m+n+m-n)(m+n-m+n)]=(m+n)(2m+2n)=2(m+n)^2=(m+n)(
(m-n)^3(n-m)^2(m-n)=_____(m-n)^6
4m(m-n)^2+4n(n-m)^34m(m-n)^2+4n(n-m)^3=4m(n-m)^2+4n(n-m)^3=4(n-m)^2(m+n(n-m))=4(n-m)^2(n^2-nm+m)
m-n+2n^2/(m+n)m-n+2n^2/(m+n)=[(m-n)(m+n)+2n^2]/(m+n)=(m^2+n^2)/(m+n)
(m-2n/n-m)-(n/m-n)=(m-2n/n-m)-(n/m-n)=(m-2n/n-m)+(n/n-m)=(m-n)/(n-m)=-1
2(m-n)²-m(m-n)
2(m-n)的2次-(m+n)(m-2n)-3n(n-m)2(m-n)²-(m+n)(m-2n)-3n(n-m)=2(m-n)²+3n(m-n)-(m+n)(m-2n)=[2(m-n)+3n](m-n)-(m+n)(m-
2m-3n-m+2n=2m-m+2n-3n=m-n
(m-n)3-(2n-m)3(m-n)3-(2n-m)3=﹙m-n-2n+m﹚[﹙m-n﹚²+﹙m-n﹚﹙2n-m﹚+﹙2n-m﹚²]=﹙2m-3n﹚﹙m²-3mn+3n²﹚急急急急急急急急急(m-n
(3m-n)(m-2n)=()3m^2-7mn+2n^23m^2-7mn+2n^23m平方-7mm+2n平方=0
(m+2n)(m-3n)(m+2n)(m-3n)=m²-3mn+2mn-6n²=m²-mn-6n²m平方-mn-6n平方
(m-3n)(2m+n)=2m²+mn-6mn-3n²=2m²-5mn-3n²2m^2-5mn-3n^2