计算:(x-y)m(y-x)2m+(y-x)3m.
计算:(x-y)m(y-x)2m+(y-x)3m.
计算:(y-x)^3(x-y)^m-(x-y)^m+2(y-x)
已知x^(3m)=2 y^(2m)=3 求(x^(2m))^3+(y^m)^6-(x^2*y)^3m * y^m
3m(x-y)-2(y-x)²因式分解
计算[(x-y)^3]^m[(x-y)^m]^5=.
计算:【(x-y)/(m-n)】的立方×【(n-m)/(y-x)】的四次方×【(2m-2n)/3y-3x】的平方
计算:(x/y^3)^-2 计算:m+n/m-n除以mn+m^2/2m
y等于(3+m)X^m^2-10
已知集合M={(x,y)|y=x+3},N={(x,y)|y=-2x+6},则M∩N=______.
计算(1)(3m-4n)(3m+4n)-(2m-2n)(2m+n) (2)(x+5y)²-(x-5y)
XYM适合于关系式(3x+5y-3-m)根号+(2x+3y-m)根号=(x+y-2009)根号+(2009-x-y)求m
若m适合关系式根号(2x+3y-m)+根号(3x+2y+1-m)=根号(x+y-2014)+根号(2014-x-y),求