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

  • question_answer
    Evaluate the following algebraic expression for \[\mathbf{x}\text{ }=\text{ }\mathbf{2},\text{ }\mathbf{y}\text{ }=\text{ }-\text{ }\mathbf{5},\text{ }\mathbf{z}\text{ }=\text{ }-\text{ }\mathbf{4},\text{ }\mathbf{a}\text{ }=\text{ }-\text{ }\mathbf{2},\text{ }\mathbf{b}=-\mathbf{1}:\]
    \[\mathbf{13}\text{ }+\text{ }\mathbf{5}{{\mathbf{z}}^{\mathbf{3}}}\mathbf{xy}\text{ }+\text{ }\mathbf{3x}{{\mathbf{y}}^{\mathbf{2}}}+\text{ }{{\mathbf{a}}^{\mathbf{2}}}\mathbf{b}\text{ }-\text{ }\mathbf{8xyz}\]

    A) 3039

    B)  2058

    C)  4037               

    D)  5251

    E)  None of these

    Correct Answer: A


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