Quadratic Formula


    The Quadratic Formula

    Question
    d 2 + 8 d + 3 = 0

    Answer d = − 0.39 d = − 7.61



    Question
    3 b 2 + 9 b + 5 = 0

    Answer b = − 0.74 b = − 2.26



    Question
    2 c 2 + 9 c + 4 = 0

    Answer c = − 0.50 c = − 4



    Question
    y 2 + 6 y + 3 = 0

    Answer y = − 0.55 y = − 5.45



    Question
    3 b 2 − 12 b + 6 = 0

    Answer b = 3.41 b = 0.59



    Question
    2 b 2 + 11 b + 4 = 0

    Answer b = − 0.39 b = − 5.11



    Question
    3 d 2 + 7 d + 1 = 0

    Answer d = − 0.15 d = − 2.18



    Question
    2 c 2 − 10 c + 4 = 0

    Answer c = 4.56 c = 0.44



    Question
    2 d 2 − 10 d + 3 = 0

    Answer d = 4.68 d = 0.32



    Question
    g 2 + 8 g + 3 = 0

    Answer g = − 0.39 g = − 7.61



    Question
    e 2 − 8 e + 1 = 0

    Answer e = 7.87 e = 0.13



    Question
    d 2 − 5 d − 1 = 0

    Answer d = 5.19 d = − 0.19



    Question
    f 2 + 10 = 17 f

    Answer f = 16.39 f = 0.61



    Question
    4 = 2 a 2 − 11 a

    Answer a = 5.84 a = − 0.34



    Question
    6 f = 1 − 3 f 2

    Answer f = 0.15 f = − 2.15



    Question
    9 b = 3 − 2 b 2

    Answer b = 0.31 b = − 4.81



    Question
    13 a = 10 − a 2

    Answer a = 0.73 a = − 13.73



    Question
    14 c = 7 − 2 c 2

    Answer c = 0.47 c = − 7.47



    Question
    a 2 + 1 = 6 a

    Answer a = 5.83 a = 0.17



    Question
    9 = 3 c 2 − 12 c

    Answer c = 4.65 c = − 0.65



11th October 2019

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