Question

x(y−z )−y(x−z ) + z (y−x)

Answer 1

Respuesta:

x(y−z )−y(x−z ) + z (y−x)

$=xy-xz-y\left(x-z\right)+z\left(y-x\right)\\\\=xy-xz-xy+yz+z\left(y-x\right)\\\\=xy-xz-xy+yz+yz-xz\\\\=-2xz+2yz$