-3m^2n/5+m^2n-mn^2烦,做不出来2(x-1)-3(2-3x)
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-3m^2n/5+m^2n-mn^2烦,做不出来2(x-1)-3(2-3x)-3m^2n/5+m^2n-mn^2烦,做不出来2(x-1)-3(2-3x)-3m^2n/5+m^2n-mn^2烦,做不出来
-3m^2n/5+m^2n-mn^2烦,做不出来2(x-1)-3(2-3x)
-3m^2n/5+m^2n-mn^2
烦,做不出来
2(x-1)-3(2-3x)
-3m^2n/5+m^2n-mn^2烦,做不出来2(x-1)-3(2-3x)
-3m^2n/5+m^2n-mn^2
=(1-3/5)m^2n-mn^2
=(3/5)m²n-mn²
2(x-1)-3(2-3x)
=2x-2-6+9x
=11x-8
1/M+1/N=5 (3M+MN+2N) / (M-MN=3N)
(5mn-2m+3n)+(-7m-7mn)
(5mn-2m+3n)+(-7m-7mn)
(m-n)(m^5+m^4n+m^3n^2+m²n^3+mn^4+n^5)
m+n=5,mn=14,则(3m-2n)-(-5n+mn)
已知mn/m+n=2求3m-5mn+3n/-m+3mn-n
已知M+N分之MN=2,求-m+3mn-n分之3m-5mn+3n
已知mn/m+n=2,求3m-5mn+3n/(-m)+3mn-n
已知mn/m+n=2,求3m-5mn+3n/-m+3mn-n的值
m-n=7 mn=-5求(3m+5n+4mn)-(2n-4n+6mn)
若m-n=4,mn=-1,求(-2mn+m+n)-(3mn+5n-5m)-(m+4n-3mn)的值
3(m^2-mn+2n^2)-2(mn-m^2+n^2)+(5mn-4n^2+1)
m^3n-2m^2n^2+mn^3
M-n=2 m+n=5 Mn?
m²-3mn+2n²+m-n因式分解
因式分解:8mn(n-m)+2(n-m)^3
因式分解:8mn(n-m)+2(n-m)^3,
已知m-n=7,mn=2 求5n-3mn+5m+2