(2x-y+z)(2x+y-z) 这道题怎么用公式法计算啊?
(2x+y-z)(2x-y+z)(用乘法公式计算)
(2x-y+z)(2x+y-z) 用乘法公式计算
运用乘法公式计算:(x+2y-3z)(x-2y+3z)
乘法公式计算(x-y+z)的2次方
(y-x)/(x+z-2y)(x+y-2z)+(z-y)(x-y)/(x+y-2z)(y+z-2x)+(x-z)(y-z
(x+y-z)(x+y+z)用平方差公式
(x*x+y*y+z*z)-(X+Y+Z)=?excel公式怎么表达
x,y,z正整数 x>y>z证明 x^2x +y^2y+z^2z>x^(y+z)*y^(x+z)*z^(x+y)
解乘法公式计算1·(x+y+2z)(x-y-2z)2·(x+2y-z)^2
为了应用平方差公式计算(2x+y+z)(y-2x-z),下列变形正确的是
化简(y-x)(z-x)/(x-2y+z)(x+y-2z)+(z-y)(x-y)/(x-2z+y)(y+z-2x)+(x
(x-2y+z)(x+y-2z)分之(y-x)(z-x) + (x+y-2z)(y+z-2x)分之(z-y)(x-y)