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7th Class Mental Ability Algebraic Expressions Question Bank Algebra

  • question_answer
    Factories: \[27{{x}^{3}}+ 64{{y}^{3}}+ 108{{x}^{2}}+ 144x{{y}^{2}}\].

    A) \[{{\left( 3x + 4y \right)}^{3}}\]    

    B) \[{{\left( 2x + 4y \right)}^{2}}\]

    C) \[{{\left( 3x - 4y \right)}^{2}}\]

    D)               \[{{\left( 9x + 2y \right)}^{6}}\]

    E) None of these

    Correct Answer: A

    Solution :

    Explanation \[{{(a+b)}^{3}}={{a}^{3}}+{{b}^{3}}+3{{a}^{2}}b+3a{{b}^{2}}\]    


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