8th Class Mathematics Sample Paper Mathematics Sample Paper-5

  • question_answer
    Factorize: \[{{a}^{4}}-14{{a}^{2}}{{b}^{2}}-51{{b}^{2}}\]

    A) \[({{a}^{2}}+17{{b}^{2}})({{a}^{2}}-7{{b}^{2}})({{a}^{2}}-7{{b}^{2}})\]

    B) \[({{a}^{2}}-17{{b}^{2}})({{a}^{2}}-3{{b}^{2}})\]

    C) \[(a+b\sqrt{17})(a-b\sqrt{17})({{a}^{2}}+3{{b}^{2}})\]

    D) \[(a+b\sqrt{17})(a-b\sqrt{17})({{a}^{2}}-3{{b}^{2}})\]

    E) None of these

    Correct Answer: C


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