m^2-2n^2减去5m^2-3n^2+1的差为?
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m^2-2n^2减去5m^2-3n^2+1的差为?
m^2-2n^2减去5m^2-3n^2+1的差为?
m^2-2n^2减去5m^2-3n^2+1的差为?
(m^2-2n^2)-(5m^2-3n^2+1)
=m^2-2n^2-5m^2+3n^2-1
=-4m^2+n^2-1
m^2-2n^2减去5m^2-3n^2+1的差为?
m²-2n²减去5m²-3n²+1的差为
因式分解(n-m)^3(m-n)^2-(m-n)^5
(n-m)^3×(m-n)^2-(m-n)^5
n减去-3m等于5m^2-3m-5的代数式是
若M.N满足{M+2N=8,2M+N=7}则M减去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))
(1),(-m-n)(-m+n) (2),(-m+n)(m-n)
(m-2n)(-m-n)
(m+5n)^2-2(5n+m)(n-3m)+(3m-n)^2
[2(m+n)^5-3(m+n)^4+(-m-n)^3]÷[2(m+n)^3]
[5m(3m-n)+2n(n-3m)]/(3m-n)
5(m+n)(m-n)-2(m+n)平方-3(m-n)平方
(m-5n)(m-n)-6(m+2n)(m-3n)计算,要有过程
(m-5n)(m-n)-6(m+2n)(m-3n)
若m减去n等于2,m乘以n等于负1,求(负2乘以m乘以n加上2乘以m加上3乘以n)减去(3乘以m乘以n加上2乘以n减去2乘以m)减去(m加上4乘以n加上m乘以n)的值.非常急)
[(m-n)^2*(m-n)^3]^2/(m-n)^4