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    Question

    What approximate value will come in place of question mark (?) in the following question? (you are not expected to calculate the exact value)

    `[(7.99)^2 - (13.001)^2 + (4.01)^3]^2=`

    ?
    A -1800 Correct Answer Incorrect Answer
    B 1450 Correct Answer Incorrect Answer
    C -1660 Correct Answer Incorrect Answer
    D 1681 Correct Answer Incorrect Answer
    E -1400 Correct Answer Incorrect Answer

    Solution

    `[(7.99)^2 - (13.001)^2 + (4.01)^3]^2=` ? `[(8)^2 - (13)^2 + (4)^3]^2=` ? `[64 - 169 + 64]^2=` ? `[-41]^2 = ` ? ? = 1681

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