7th Class Mathematics Algebraic Expressions Question Bank Algebra

  • question_answer
    Find the value of the expression \[{{x}^{2}}+2x+1\] when\[x=-1\]

    A)  \[1\]                            

    B)  \[0\]

    C)  \[2\]                            

    D)  \[-1\]

    Correct Answer: B

    Solution :

     \[{{(-1)}^{2}}+2(-1)+1=0\]


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