7th Class Mathematics Algebraic Expressions Question Bank Algebraic Expressions and Linear Equation

  • question_answer
    Find the value of the following expression at \[\mathbf{a}\text{ }=\text{ }-\text{ }\mathbf{2}\text{ }\mathbf{and}\text{ }\mathbf{b}\text{ }=\text{ }-\text{ }\mathbf{3}\].
    \[{{\mathbf{a}}^{\mathbf{3}}}+\text{ }\mathbf{3}{{\mathbf{b}}^{\mathbf{2}}}-\text{ }\mathbf{3ab}\text{ }+\text{ }\mathbf{5a}{{\mathbf{b}}^{\mathbf{2}}}~~~~~\]

    A)      -75       

    B)    -89

    C)  39

    D)  68

    E) None of these

    Correct Answer: B

    Solution :

    Not Available

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