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`x^(2)+y^(2)+2(xy+yz+zx)` के गुणनखण्ड कीजिए |

Answer» `x^(2)+y^(2)+2(xy+yz+zx)=x^(2)+y^(2)+2xy+2yz+2zx`
`=(x+y)^(2)+2z(y+x)=(x+y)^(2)+2z(x+y)`
`=(x+y)(x+y+2z)`


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