若m+n=5,m-n=1,则(-3m^2n^5)÷(-mn^3)^m的值等于_______若2x+x^2+x^2y^2+2=-2xy,则x+y的值是______
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/29 05:58:11
xRN@mn0t!zވQx"
hH`T/~N8Đش73ގ].M/.XQw
a]T[9b5gCOE%pr$q?GJOl[,2{huI&ޑg}esL[n'ANU9ۃ8J]Qs7֬њ7Qt~sWuqmsʗeO{
1若m=n,则|m|=|n|;2若m=—n,则|m|=|n|;3若|m|=|n|,则m=—n;4若|m|=|n|,则m=n哪个对
3道同底数幂的题.(1)若(m+n)^m×(n+m)^n=(m+n)^5,且(m-n)^m-5×(m-n)^5-n=(m-n)^3,求m^m×n^n的值(2)已知a^m+1=2,a^n-1=8,则a^m+n等于?(3)如有工艺a^m+3×a^n-1=a^5,那么n等于?
若m、n互为相反数,则(5m-3n)-(2m-6n)=
若m n互为相反数 则3[m-n]-1/2[2m-10n]=?
已知3m=4n,则m/m+n+n/m-n-m^2/m^2-n^2=
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))
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
若2m-n/m+2n=5,求3(2m-n)/m+2n-m+2n/2m-n+3的值
若2m-n/m+2n=5,求3(2m-n)/m+2n-m+2n/2m-n+3的值
如果m和n互为相反数,则m+2m+3m+4m+5m+5n+4n+3n+2n+n=
集合M={m^2,m+1,-3},N={m-3,2m-1,m^2+1},若M交N={-3},则m=?
若2m=3n,求分式(1+m/n-n/n-m)除以(1-m/n-n/n+m)的值
若2m=3n,求分式(1+m/n-n/n-m)除以(1-m/n-n/n+m)的值
若|m|=4,|n|=1/2 1,若m+n>m-n,则m+n=?2,若|m+n|=|m|+|n|若|m|=4,|n|=1/21,若m+n>m-n,则m+n=?2,若|m+n|=|m|+|n|,则m、n的值分别是:
若(m+n)(m-n)^2-mn(m+n)=(m+n)·M,则M是
若(m+n)^2-mn(m+n)=(m+n)·M,则M是() A.m^2+n^2 B.m^2-mn+n^2 C.m^2-3mn+n^2 D.m^2+mn+n^2
.4(m+n)^2*(m+n)^3-7(m+n)(m+n)^4+5(m+n)^5=