计算（25x^2y^3z-10x^3 y^2）/5x^2y*y

2(x+y-z)-3(x-y+z)-5(x+y-z)+6(x-y+z) 计算 计算（25x^2y^3z-10x^3 y^2）/5x^2y*y 计算X+2Y+3Z=10X+2Y+3Z=104X+3Y+2Z=15求x+y+z=? 计算：3x-2y- [-4x+(z+3y)] 计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y-2Z) 补充习题 9.计算｛x-2y+3z}{x+2y-3z}计算{x-2y+3z}{x+2y-3z} 计算（x+2y-3z)^2+（x-2y+3z)(x+2y-3z) (x+2y+3z)-(3x+2y-z)+(2x-3y+4z) 用直式计算 计算（x+2y-3z)的平方+（x-2y+3z)(x+2y-3z) 计算:(2x^2)^3-6x^3(x^3+2x^2+x);(x+y+z)(x+y-z) 计算①(2x+y-3z)²；②y（x+y)+(x-y)²-x²-2y². 因式分解：25x y^2 z^2 (x+y-z)-30xyz(z-x-y)^2+5x y z^3 (z-x-y) 计算:x^2/(x-y)(x-z)+y^2/(y-x)(y-z)+z^2/(z-x)(z-y) 计算（x-y-z)^2 (4x-2y-z)-{5x-[8y-2z-(x-2y)]-x-(3y-10z)}=? X/10=Y/8=Z/9,则X+Y+Z/2Y-3Z 计算（x+2y-3z）（x-2y+3z）+（2y-3z）² 计算：(x+2y^2-3z^3)(-x-2y^2-3z^3)=?