2(x-y)³+(y-x)²分解因式
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/09/02 03:32:10
2(x-y)³+(y-x)²分解因式
2(x-y)³+4(y-x)² ....
2(x-y)³+4(y-x)² ....
2(x-y)³+(y-x)²
=2(x-y)³+(x-y)²
=(x-y)²×[(2(x-y)+1]
=(x-y)²(2x-2y+1)
再问: 2(x-y)³+4(y-x)² 修正一下啊 还有一道是 a(x+y-z)-b(z-y-x)-c(x-z+y) 谢谢了
再答: 2(x-y)³+4(y-x)² =2(x-y)³+4(x-y)² =2(x-y)²×[((x-y)+2] =2(x-y)²(x-y+2) a(x+y-z)-b(z-y-x)-c(x-z+y) =a(x+y-z)+b(x+y-z)-c(x+y-z) =(x+y-z)(a+b-c)
=2(x-y)³+(x-y)²
=(x-y)²×[(2(x-y)+1]
=(x-y)²(2x-2y+1)
再问: 2(x-y)³+4(y-x)² 修正一下啊 还有一道是 a(x+y-z)-b(z-y-x)-c(x-z+y) 谢谢了
再答: 2(x-y)³+4(y-x)² =2(x-y)³+4(x-y)² =2(x-y)²×[((x-y)+2] =2(x-y)²(x-y+2) a(x+y-z)-b(z-y-x)-c(x-z+y) =a(x+y-z)+b(x+y-z)-c(x+y-z) =(x+y-z)(a+b-c)