已知x^n=5,y^m=3,求(a^2*y)^2n
已知单项式M,N满足3x(M-5x)=6x^2y^3+N,求M,N
已知a^m=2,a^n=3,求a^2m+3n的值; 已知a^2n+1=5,求a^6n+3的值 ;已知x^n=2,y^n=
已知,单项式M,N满足2x(M+3x)=6x^2y^2+N,求M,N.
已知单项式M、N满足2x(M+3x)=6x^2y^2+N,求M、N.
已知单项式M N满足3x(M-5x)=6x^2y^2 求M N
已知,单项式M,N满足2x(M+3x)=6x²y²+N,求M,N
已知x=2m-3n根号m+n+3是m+n+3的算术平方根,y=m-n+1根号m+2n是m+2n的立方根,求(x-y)的2
已知反比例函数y=x分之(m+3)经过点A(2,-m)和点B(n,2n),求m和n的值
一道 (已知M,N分别表示不同的单项式,且3x(M-5x)=6x?2y?3+N.求M,N.
已知x^3m=8,y^3n=27,求(x^2m)^3+(y^n)^3-x^2m*y^n
若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,
已知x^3m=8,y^3n=27,求(2^2m)^3+(y^n)^3-x^2m*y^n的值.