nat0922 nat0922

09-05-2020
Mathematics

contestada

What are the solution(s) of x^2-4=0?
х = -4 or x=4
х=-2 or x= 2
х=2
х=4

Respuesta :

jimrgrant1 jimrgrant1

09-05-2020

Answer:

x = - 2 or x = 2

Step-by-step explanation:

Given

x² - 4 = 0 ( add 4 to both sides )

x² = 4 ( take the square root of both sides )

x = ± [tex]\sqrt{4}[/tex] = ± 2

Thus x = - 2 or x = 2

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