(5m³n²-6m2)÷(3m)=
m2+4m+n=?
若m2-n2=6,且m-n=3,则m+n=______.
已知集合M={1,(m2-3m-1)+(m2-5m-6)i},N={1,3},M∩N={1,3},则实数m的值为( )
已知m2-6m+9与|n+1|互为相反数,则m/m+n + n/m-n - m2/m2-n2 =
计算4m2-5m(-m+2n-1)+4m(-2m-3n+2),其中m=2,n=-1
先化简,再求值:8m2-5m(-m+3n)+4m(-4m-52
先化简再求值:(2m-n)(m+n)+(m-n)²-(6m³-4m²n)÷2m,其中m=2
m2+n2+8m-6n+25=0
若m2-n2=6,且m-n=2,则3m+3n=______.
化简,求值:m2-1/m2-2m+1÷(m-1-m+1/m-1),其中m=√3
m2-n2=15,m+n=5,则m-n=_______
已知m2+n2-6m+10n+34=0,则m+n=______.