初一数学分解因式题x(x-y-z)-y(y-x+z)-z(z-x+y),看清符号呀~

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初一数学分解因式题x(x-y-z)-y(y-x+z)-z(z-x+y),看清符号呀~
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初一数学分解因式题x(x-y-z)-y(y-x+z)-z(z-x+y),看清符号呀~
初一数学分解因式题x(x-y-z)-y(y-x+z)-z(z-x+y),看清符号呀~

初一数学分解因式题x(x-y-z)-y(y-x+z)-z(z-x+y),看清符号呀~
x(x-y-z)-y(y-x+z)-z(z-x+y),
=x(x-y-z)+y(x-y-z)+z(x-y-z)
=(x-y-z)(x+y+z)