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14 April, 07:36

Use the quadratic formula

9x^2+3x-1=0

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Answers (1)
  1. 14 April, 08:53
    0
    9x2+3x-1=0

    Step 1: Use quadratic formula with a=9, b=3, c=-1.

    x = - b±√b2-4ac

    2a

    x = - (3) ±√ (3) 2-4 (9) (-1)

    2 (9)

    x = - 3±√45

    18

    x = - 1

    6

    +

    1

    6

    √5 or x=

    -1

    6

    +

    -1

    6

    √5

    Answer:

    x=

    -1

    6

    +

    1

    6

    √5 or x=

    -1

    6

    +

    -1

    6

    √5
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