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9 March, 22:35

Select all of the solutions of 4x2 - 36 = 0. If there are no solutions, select the empty set.

-3

-3/2

3/2

3

{}

+2
Answers (1)
  1. 9 March, 23:49
    0
    -3; 3

    Step-by-step explanation:

    4x² - 36 = 0 ⇌ (2x) ² - 6² = 0 ⇌ (2x - 6) (2x + 6) = 0 ⇌ 2x - 6 = 0 or 2x + 6 = 0

    ⇌ x = 3 or x = - 3
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