7th Class Mental Ability Algebraic Expressions Question Bank Algebra

  • question_answer
    Find the cube of x - 2y.

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

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

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

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

    E) None of these

    Correct Answer: B


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