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`49x^(2)+14x+1` के गुणनखण्ड कीजिए |

Answer» `49x^(2)+14x+1`
`=(7x)^(2)+2.7x+(1)^(2)=(7x)^(2)+2xx7x +1+(1)^(2)`
`=(7x+1)^(2) " " [because a^(2)+2ab+b^(2)=(a+b)^(2)]`


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