7m-3m-7=07n+3n-2=0m,n都不等于0求n分之m
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7m-3m-7=07n+3n-2=0m,n都不等于0求n分之m7m-3m-7=07n+3n-2=0m,n都不等于0求n分之m7m-3m-7=07n+3n-2=0m,n都不等于0求n分之mm=7/4n=
7m-3m-7=07n+3n-2=0m,n都不等于0求n分之m
7m-3m-7=0
7n+3n-2=0
m,n都不等于0
求n分之m
7m-3m-7=07n+3n-2=0m,n都不等于0求n分之m
m = 7/4
n = 1/5
m/n = 35/4
m/n=7/3则m+n/m-n
.4(m+n)^2*(m+n)^3-7(m+n)(m+n)^4+5(m+n)^5=
如果m-3n+4=0 求(m-3n)^2+7m^3-3(2m^3n-m^2n-1)+3(m^3+2m^3n-m^2n+n
(m-n)^3(n-m)^2(m-n)=_____
m-[n-3m-(m-n)]=?
(3m-n)(m-2n)=()
7m-3m-7=07n+3n-2=0m,n都不等于0求n分之m
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3m+2n=7 3m-n=5m=?n=?
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