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7th Class Mathematics Exponents and Power Question Bank Exponents and Powers

  • question_answer
    The value of \[(-8)\times (-8)\times (-8)\times (-8)+(-8)\]\[\times (-8)\times (-8)\times (-8)\] is ____.                         

    A)  \[-2{{(8)}^{5}}\]                

    B)  \[-{{(2)}^{16}}\]    

    C)         \[-{{(4)}^{8}}\]           

    D)         All of these                 

    Correct Answer: D

    Solution :

    \[{{(-8)}^{5}}+{{(-8)}^{5}}=-2\times {{\left( 8 \right)}^{5}}=-2\times {{(2)}^{15}}\] \[=-{{(2)}^{16}}=-{{(4)}^{8}}\]


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