中科新闻网熊猫币35周年:计算(X+3Y+2X)(-X-3y-2Z)
来源：百度文库 编辑：中科新闻网 时间：2024/05/16 05:52:11
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没有错!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
没有错!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
题目好像错了 是不是应该(X+3Y+2Z)(-X-3y-2Z)啊?
下列式子不能用平方差计算公式算的是A(x-y-z)(-x+y+z) B(-2x+3y)(3y+2x) C(x+y+z)(x-y+z) D(-5-X)(X-5
计算(X+3Y+2X)(-X-3y-2Z)
已知3x-z=x+y+z=4x+2y-z,求x : y : z
求(2x-3y+z)-3{x-2[-z+(x-y)]-(3y-5x)}+1的结果是多少？
x =2y,3y=4z,则x:y:z =?:?:?
若x,y ,z满足方程组1、3x+7y-x=3 2、4x+10y-z=2 求X+Y+Z的值
（x-y)^3*(x-y)^2*(y-x)
3X(X-Y)+2Y(X-Y)
因式分解x^3(y^2-z^2)+y^3(z^2-x^2)+z^3(x^2-y^2)
2x+Y+3z=23,x+4y+5z=36,求X+2Y+3z~~~~