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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-13

  • question_answer
    What is the HCF of \[({{x}^{4}}-{{x}^{2}}-6)\] an\[({{x}^{4}}-4{{x}^{2}}+3)\]?

    A) \[{{x}^{2}}-3\]  

    B) \[x+2\]

    C) \[x+3\]            

    D) \[{{x}^{2}}+3\]

    Correct Answer: A

    Solution :

    \[({{x}^{4}}-{{x}^{2}}-6)=({{x}^{2}}-3)\,({{x}^{2}}+2)\] \[({{x}^{4}}-4{{x}^{2}}+3)=({{x}^{2}}-3)\,({{x}^{2}}-1)\] HCF \[=\]      


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