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9th Class Mathematics Polynomials Question Bank Polynomials

  • question_answer
    Identify one of the factors of\[{{x}^{2}}+\frac{1}{{{x}^{2}}}+2-2x-\frac{2}{x}\]from the following.

    A) \[x-\frac{1}{x}\]            

    B) \[x+\frac{1}{x}-1\]       

    C)        \[x+\frac{1}{x}\]          

    D)        \[{{x}^{2}}+\frac{1}{{{x}^{2}}}\]               

    Correct Answer: C

    Solution :

    \[{{x}^{2}}+\frac{1}{{{x}^{2}}}+2-2x\frac{2}{x}\] \[=\left( x+\frac{1}{x} \right)\left( x+\frac{1}{x}-2 \right)\]


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