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20 July, 03:46

5. Which of the following is a solution to x2 - X - 6 = 0?

A

B

C

D

-3

-2

-1

2

+3
Answers (2)
  1. 20 July, 05:13
    0
    The answers are x=3; x = - 2. Good luck!
  2. 20 July, 07:11
    0
    x² - x - 6 = 0

    x² - (3 - 2) x - 6 = 0

    x² - 3x + 2x - 6 = 0

    x (x - 3) + 2 (x - 3) = 0

    (x - 3) (x + 2) = 0

    x - 3 = 0

    x = 3

    x + 2 = 0

    x = - 2

    x = 3 and x = - 2
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