计算：3x-2y- [-4x+(z+3y)]

计算：3x-2y- [-4x+(z+3y)] 2(x+y-z)-3(x-y+z)-5(x+y-z)+6(x-y+z) 计算 (x+2y+3z)-(3x+2y-z)+(2x-3y+4z) 用直式计算 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) C++计算x=2,y=3,z=4计算z+=x++||y++||++z求x,y,z的值 化简-(-3x-y+2z)-{-x+【4x-(x-y-z)-3x+2z} 补充习题 9.计算｛x-2y+3z}{x+2y-3z}计算{x-2y+3z}{x+2y-3z} x+2y=3x+2z=4y+z 求x:y:z x+y/2=z+x/3=y+z/4 x+y+z=27 数学--整式运算4(x-y+z)-2(x+y-z)-3(-x-y-z) 计算（x+2y-3z)^2+（x-2y+3z)(x+2y-3z) 计算（x+2y-3z)的平方+（x-2y+3z)(x+2y-3z) 计算:(2x-3y-4z)^2 计算:(4x-3y-2z)的平方 计算:(2x^2)^3-6x^3(x^3+2x^2+x);(x+y+z)(x+y-z) x:y=3:2 y:z=5:4 x+y+z=66 请教结果及计算过程 计算①(2x+y-3z)²；②y（x+y)+(x-y)²-x²-2y². 计算:x^2/(x-y)(x-z)+y^2/(y-x)(y-z)+z^2/(z-x)(z-y)