Giải thích các bước giải: `(x-y)(y-z)(z-x)` `=( xy – xz – y^2 + yz)(z-x)` `=xyz – xz^2 – y^2z + yz^2 – x^2y + x^2z + xy^2 – xyz` `=- xz^2 – y^2z + yz^2 – x^2y + x^2z + xy^2` Reply
$#Dino$ `(x-y)(y-z)(z-x)` `=(xy-xz-y^2+zy)(z-x)` `=xyz-x²yz-xz²+x²z-zy²+xy²+z²y-xyz` `=(xyz-xyz)-x²yz-xz²+x²z-zy²+xy²+z²y` `=-x²yz-xz²+x²z-zy²+xy²+z²y` Reply
Giải thích các bước giải:
`(x-y)(y-z)(z-x)`
`=( xy – xz – y^2 + yz)(z-x)`
`=xyz – xz^2 – y^2z + yz^2 – x^2y + x^2z + xy^2 – xyz`
`=- xz^2 – y^2z + yz^2 – x^2y + x^2z + xy^2`
$#Dino$
`(x-y)(y-z)(z-x)`
`=(xy-xz-y^2+zy)(z-x)`
`=xyz-x²yz-xz²+x²z-zy²+xy²+z²y-xyz`
`=(xyz-xyz)-x²yz-xz²+x²z-zy²+xy²+z²y`
`=-x²yz-xz²+x²z-zy²+xy²+z²y`