x²+xy-yz-zx 怎么因式分解
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x²+xy-yz-zx 怎么因式分解
x²+xy-yz-zx
=x(x+y)-z(x+y)
=(x+y)(x-z)
x²+xy-yz-zx
=x(x+y)-z(y+x)
=(x-z)(x+y)
x²+xy-yz-zx
=x(x+y)-z(x+y)
=(x+y)(x-z)
x(x+y)-z(x+y)=(x-z)(x+y)
x(x+y)-z(X+Y)=(x+y)(x-z)