因式分解下列式子:x(x-y)+y(y-x)=?

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因式分解下列式子:x(x-y)+y(y-x)=?
因式分解下列式子:x(x-y)+y(y-x)=?

因式分解下列式子:x(x-y)+y(y-x)=?
x(x-y)+y(y-x)
=x(x-y)-y(x-y)
=(x-y)(x-y)
=(x-y)²
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x(x-y)+y(y-x)
=x(x-y)-y(x-y)
=(x-y)(x-y)
=(x-y)²
有不明白的可以追问!谢谢!!
祝学习进步

x(x-y)+y(y-x)
=x(x-y)-y(x-y)
=(x-y)(x-y)
=(x-y)^2

x(x-y)+y(y-x)=x(x-y)-y(x-y)=(x-y)^2