EQ xy\b(x-y)-xz\b(y-z)-xz\b(x-y)+yz\b(y-z) =
Производим группировку.
= EQ xy\b(x-y)+\b(-xz\b(y-z)-xz\b(x-y)+yz\b(y-z)) =
= EQ xy\b(x-y)+\b(-\b(xz)\b(y-z)-\b(xz)\b(x-y)+\b(yz)\b(y-z)) =
Раскрываем скобки.
= EQ xy\b(x-y)+\b(-\b(xyz-xz\s\up8(2))-\b(x\s\up8(2)z-xyz)+\b(y\s\up8(2)z-yz\s\up8(2))) =
Раскрываем скобки.
= EQ xy\b(x-y)+\b(-xyz+xz\s\up8(2)-x\s\up8(2)z+xyz+y\s\up8(2)z-yz\s\up8(2)) =
Приводим подобные члены.
= EQ xy\b(x-y)+\b(xz\s\up8(2)-x\s\up8(2)z+y\s\up8(2)z-yz\s\up8(2)) =
Выносим знак минус из произведения.
= EQ xy\b(x-y)-\b(-xz\s\up8(2)+x\s\up8(2)z-y\s\up8(2)z+yz\s\up8(2)) =
= EQ xy\b(x-y)-\b(xz+yz-z\s\up8(2))\b(x-y) =
= EQ \b(xy)\b(x-y)-\b(xz+yz-z\s\up8(2))\b(x-y) =
Выносим общий множитель.
= EQ \b(xy-\b(xz+yz-z\s\up8(2)))\b(x-y) =
Раскрываем скобки.
= EQ \b(xy-xz-yz+z\s\up8(2))\b(x-y) =
= EQ \b(\b(x-z)y+\b(-xz+z\s\up8(2)))\b(x-y) =
Выносим общий множитель.
= EQ \b(\b(x-z)1y+\b(x-z)\b(-z))\b(x-y) =
Выносим общий множитель.
= EQ \b(\b(x-z)\b(1y+\b(-z)))\b(x-y) =
= EQ \b(\b(x-z)\b(y+\b(-z)))\b(x-y) =
= EQ \b(\b(x-z)\b(y-z))\b(x-y) =
Раскрываем скобки.
= EQ \b(x-z)\b(y-z)\b(x-y)
Ответ: EQ \b(x-z)\b(y-z)\b(x-y) .
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