7th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-1

  • question_answer
    Find the cube of\[x-2y\].

    A)  \[{{x}^{3}}+8\,{{y}^{2}}+6\,{{x}^{2}}y-12\,x{{y}^{3}}\]

    B)  \[{{x}^{3}}-8\,{{y}^{2}}-6\,{{x}^{2}}y+12\,x{{y}^{2}}\]

    C)  \[{{x}^{2}}-87\,{{y}^{2}}+7\,xy-7\,xy\]

    D)  \[7\,x{{y}^{3}}+6\,x-74\,{{x}^{2}}y-2\,xy\]

    E)  None of these

    Correct Answer: B

    Solution :

     Not Available


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