Question

simplify:(x+y)(y-z)+(y+z)(z-x)+(x+z)(x-y)​

Answer 1

Answer:

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Answer 2

Answer:

+y2-xy+z2-xz+x2-yz

Step-by-step explanation:

=X(y-z) y(y-z) +y(z-x) +z(z-x) +x(x-y) +z(x-y)

=Xy-xz+y2-zy+yz-xy+z2-xz+x2-xy+xz-yz