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UPSC CDS Math HCF and LCM of Numbers and Polynomials Questions

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Question : 4 of 31

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What is the LCM of the polynomials x3+3x2+3x+1 , x3+5x2+5x+4 and x2+5x+4 ?

(x+1)3(x+4)(x2+x+1)
(x+4)(x2+x+1)
(x+1)(x2+x+1)
(x+1)2(x+4)(x2+x+1)

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