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  • 14-12-2019
  • Mathematics
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What are the solution(s) of x2 - 4 = 0

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  • 14-12-2019

Answer:

x = -2 or x = 2

Step-by-step explanation:

[tex]x^2-4=0\qquad\text{add 4 to both sides}\\\\x^2-4+4=0+4\\\\x^2=4\to x=\pm\sqrt4\\\\x=-2\ \vee\ x=2[/tex]

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