计算 (x-2y+z)(-x+2y+z)写过程
来源:学生作业帮助网 编辑:六六作业网 时间:2025/01/19 00:21:30
计算(x-2y+z)(-x+2y+z)写过程计算(x-2y+z)(-x+2y+z)写过程计算(x-2y+z)(-x+2y+z)写过程=(z+(x-2y))x(z-(x-2y))=z^2-(x-2y)^
计算 (x-2y+z)(-x+2y+z)写过程
计算 (x-2y+z)(-x+2y+z)
写过程
计算 (x-2y+z)(-x+2y+z)写过程
=(z+(x-2y))x(z-(x-2y))
=z^2 - (x-2y)^2
=z^2 - x^2 + 4xy - 4y^2
就是很典型的平方差公式!
原式=(z+x-2y)(z-x+2y)
其中公式的a就是z,b就是(x-2y)
得:z^2-(x-2y)^2
=x^2-(x^2-4xy+4y^2)
=4xy-4y^2
计算:(x-2y+z)²
计算:x^2/(x-y)(x-z)+y^2/(y-x)(y-z)+z^2/(z-x)(z-y)
计算:(y-x)(z-x)/(x-2y+z)(x+y-2z)+(z-y)(x-y)/(x+y-2z)(y+z-2x)+(x-z)(y-z)/(y+z-2x)(x-2y+z)
计算(x-y-z)^2
运用乘法公式计算1:(x+y+2z)(x-y-2z)2:(x+2y-z)²
(x-y+z)(x+y-z)计算
计算(2x+y+z)(2x-y-z),
计算(x+2y-z)(2y+z-x)
计算(x-2y+z)(z-x-2y),
(x一2y+z)(-x+2y+z)(计算)
计算:(x+2y-z)(x-2y-z)
计算(x+2y-z)(2y+z-x)
计算:(x-y-z)^2-(x-y+z)^2
(x+2y-z)(x-2y-z)计算过程
计算:(x+2y-z)(x-2y+z)
计算(x+2y-3z)(x-2y+3z)+(2y-3z)²
(x-2y+z)(-x+2y+z)
x+2y-z)(x+2y-z)