作业帮x(a-x)(a-y)-y(x-a)(y-a)怎么因式分解
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/03 14:41:42
x(a-x)(a-y)-y(x-a)(y-a)怎么因式分解
x(a-x)(a-y)-y(x-a)(y-a)怎么因式分解
x(a-x)(a-y)-y(x-a)(y-a)怎么因式分解
x(a-x)(a-y)-y(x-a)(y-a)
=x(a-x)(a-y)-y(a-x)(a-y)
=(a-x)(a-y)（x-y）
x(a-x)(a-y)-y(x-a)(y-a)
=x(a-x)(a-y)-y[-(a-x)][-(a-y)]
=x(a-x)(a-y)-y(a-x)(a-y)
=(a-x)(a-y)(x-y)
x(a-x)(a-y)-y(x-a)(y-a)
=(x-y)(a-x)(a-y)
因为同时改变式子中的两个数的符号结果还相等，所以（x-a)(y-a)=(a-x)(a-y)
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x(a-x)(a-y)-y(x-a)(y-a)怎么因式分解