Question

x(y-z)+y(z-x)+z(x-y)​

Answer 1

Answer:

x(y-z)+y(z-x)+z(x-y)

=xy-xz+yz-xy+xz-yz

=0

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Answer 2

Answer:

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

= XY - XZ + YZ - XY + ZX - ZY

= 0

All are cancelled. result is zero