New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    What is the HCF of   (x4  - x2  - 6)    and  

    (x4  - 4x2  + 3) ? (a)  x2  - 3                          (b)    x + 2  (c)   x + 3                         (d)   x2  + 3
    A (a) Correct Answer Incorrect Answer
    B (b) Correct Answer Incorrect Answer
    C (c) Correct Answer Incorrect Answer
    D (d) Correct Answer Incorrect Answer

    Solution

    x4  - x2  - 6 = (x2  - 3) (x2 + 2) And x4  - 4x2  +3 = (x2  - 3) (x2  -1)  HCF = (x2 - 3)

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