因式分解 x2+y2+z2+2xy+2yz+2xz-2x-2z+1x2+y2+z2+2xy+2yz+2xz-2x-2z+1

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因式分解x2+y2+z2+2xy+2yz+2xz-2x-2z+1x2+y2+z2+2xy+2yz+2xz-2x-2z+1因式分解x2+y2+z2+2xy+2yz+2xz-2x-2z+1x2+y2+z2

因式分解 x2+y2+z2+2xy+2yz+2xz-2x-2z+1x2+y2+z2+2xy+2yz+2xz-2x-2z+1
因式分解 x2+y2+z2+2xy+2yz+2xz-2x-2z+1
x2+y2+z2+2xy+2yz+2xz-2x-2z+1

因式分解 x2+y2+z2+2xy+2yz+2xz-2x-2z+1x2+y2+z2+2xy+2yz+2xz-2x-2z+1
x2+y2+z2+2xy+2yz+2xz-2x-2y-2z+1
=(x+y+z)^2-2(x+y+z)+1
=(x+y+z-1)^2