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16 February, 22:23

Solve for x: x^2-2x=15

+5
Answers (1)
  1. 17 February, 01:51
    0
    x = 5, x = - 3

    Step-by-step explanation:

    x^2 - 2x = 15

    x^2 - 2x - 15 = 15 - 15 (Subtract 15 from both sides.)

    x^2 - 2x - 15 = 0 (Simplify.)

    Set up & solve for a quadratic formula

    * I will solve for your first x

    2 + root 64 / 2x 1 = 2 + root 64 / 2

    root 64 = 8

    = 2 + 8 / 2

    = 10 / 2

    = 5

    To solve for the second, follow the same pattern/formula for the first that I used to get 5.
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