(m-5n)(m-n)-6(m+2n)(m-3n)
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(m-5n)(m-n)-6(m+2n)(m-3n)(m-5n)(m-n)-6(m+2n)(m-3n)(m-5n)(m-n)-6(m+2n)(m-3n)(m-5n)(m-n)-6(m+2n)(m-3n)
(m-5n)(m-n)-6(m+2n)(m-3n)
(m-5n)(m-n)-6(m+2n)(m-3n)
(m-5n)(m-n)-6(m+2n)(m-3n)
(m-5n)(m-n)-6(m+2n)(m-3n)
=m²-6mn+5n²-6(m²-3mn+2mn-6n²)
=m²-6mn+5n²-6m²+6mn+36n²
=-5m²+41n²
(m-5n)(m-n)-6(m+2n)(m-3n)计算,要有过程
(m-5n)(m-n)-6(m+2n)(m-3n)
(1),(-m-n)(-m+n) (2),(-m+n)(m-n)
当m-n+5(m+n)时,求[6(m-n)]/(m+n)-[5(m+n)]/(m-n)当m-n=5(m+n)时,求[6(m-n)]/(m+n)-[5(m+n)]/(m-n) ,
因式分解(n-m)^3(m-n)^2-(m-n)^5
(n-m)^3×(m-n)^2-(m-n)^5
(m-2n)(-m-n)
(m+n)平方+5(m+n)+6
6(m+n)²-2(m+n)
36-5(m+n)-(m+n)^2
m-{n-2m+[3m-(6m+3n)+5n]}=
m-{n-2m+[3m-(6m+3n)-5n]}化简
m方-【5m+3n】【5m-3n】+6【2m-n】【m+2n】等于多少
m-n+2n^2/(m+n)
(m-2n/n-m)-(n/m-n)=
2(m-n)²-m(m-n)
m/n=5/3,求(m/m+n)+(m/m+n)-(n^2/m^2-n^2)
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))