已知m^2+9n^+6m+6n+10=0,求(m^2-6mn+9n^2)÷(m-3n)-(4m^2-9n^2)÷(2m-
已知m^2+9n^+6m+6n+10=0,求(m^2-6mn+9n^2)÷(m-3n)-(4m^2-9n^2)÷(2m-
已知m^2+9n^2+6m+6n+10=0,求(m^2-6mn+9n^2)/(m-3n)-(4m^2-9n^2)/(2m
已知√m-n +√3m-2n=0,求4m²-mn+6n²-2m²+6mn-10n²
(m的平方-6mn+9n的平方)÷(m-3n)-(4m的平方-9n的平方)÷(2m-3n)=
已知m²+n²=5,mn=2,求代数式[6m²-5m(-m+3n)+4m(-4m+5/2n
以知m^2+9n^2+6m+6n+10=0,求(m^2-6mn+9n^2)除以(m-3n)-(4m^2-9n^2)除以(
已知m>0,n>0,m^2+n^2=5,mn=2求[6m^2-5m(-m+3n)+4m(-4m+5/2n)]×n的值
已知:m*m=n+2,n*n=m+2.求m*m*m-2mn+n*n*n(m不等于n).
(m²-6mn+9n²)÷(m-3n)-(4m²-9n²)÷(2m-3n)化简,
已知m 2 +2mn+2n 2 -6n+9=0,求 m n 2 的值.
(m²-6mn+9n²)÷(m-3n)-(4m²-9n²)-(2m-3n)怎么做
(m+n)²-6(m+n)+9=(m+n)²+2(m+n)×(-3)+(-3)²=[(m+