6th Class Mental Ability Algebra Question Bank Algebra

  • question_answer
         If \[\mathbf{4}{{\mathbf{x}}^{\mathbf{84}}}\mathbf{-7}{{\mathbf{x}}^{\mathbf{42}}}\mathbf{-4}{{\mathbf{x}}^{\mathbf{70}}}\mathbf{-7}{{\mathbf{x}}^{\mathbf{35}}}\mathbf{=200}\] is divided by \[{{\mathbf{x}}^{\mathbf{14}}}\mathbf{-14}\]. Which one of the following is the first term of the question? 

    A) \[-4{{x}^{70}}\]           

    B)        \[-4{{x}^{60}}\]

    C) \[4{{x}^{70}}\]  

    D)        All of these

    E) None of these 

    Correct Answer: C

    Solution :

    Explanation Option [c] is correct. \[{{x}^{14}}\times 4{{x}^{70}}=4{{x}^{(14+70)}}=4{{x}^{84}}.\]             


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