Multiple Choice Questions on What is the LCM of the polynomials x3 3x2 3x 1 x3 5x2 5x 4 and x2 5x 4 ........ for CDS Exam Preparation

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Multiple Choice Questions

What is the LCM of the polynomials x3 3x2 3x 1 x3 5x2 5x 4 and x2 5x 4 ........

Quantitative Aptitude (CDS) LCM, HCF
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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)

    Correct Answer

    (x+4)(x2+x+1)

    Incorrect Answer

    (x+1)(x2+x+1)

    Incorrect Answer

    (x+1)2  (x + 4) (x2+x+1)

    Incorrect Answer
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    Explanation:

    x3 + 3x2 +3x+1 = (x+1)3
    x3 + 5x2 + 5x +4 =(x+4)(x2 + x +1)
    x2 + 5x + 4 = (x+1)(x+4)
    LCM =  (x+1)3  (x + 4) (x2+x+1)

    By: Munesh Kumari
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