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15 February, 20:35

Solve 3x2 + 6x = 8.

a. 1 plus or minus 2 square root 33

b. the quantity of negative 3 plus or minus I square root 15 all over 3

c. the quantity of negative 3 plus or minus square root 33 all over 3

d. 1 plus or minus 2 i square root 15

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Answers (2)
  1. 15 February, 20:47
    0
    Answer: C

    quantity of - 3 + / - square root 33 all over 3
  2. 15 February, 21:58
    0
    The quantity of negative 1 plus or minus square root 33 all over 3

    Step-by-step explanation:

    3x2+6x=8

    3x^2+6x-8=0

    Quadratic formula

    x=-b + or-√b^2-4ac/2a

    a=3

    b=6

    c=-8

    x=-b + or-√b^2-4ac/2a

    =-6 + or - √ (6) ^2 - 4*3*-8/2*3

    =-6 + or - √36 - (-96) / 6

    =-6 + or-√36+96/132

    =-6 + or - √132/6

    =-6 + or - 2√33/6

    =-6/6 + or - 2√33/6

    = - 1 + or - √33/3

    The quantity of negative 1 plus or minus square root 33 all over 3
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