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07-03-2020
Mathematics

contestada

Select all of the solutions of 4x2 - 36 = 0. If there are no solutions, select the empty set.
-3
-3/2
3/2
3
{}

Respuesta :

profarouk profarouk

07-03-2020

Answer:

-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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