jclark4231 jclark4231

25-01-2018
Mathematics

contestada

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

x=-4 or x=4
x=-2 or x=2
x=2
x=4

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Respuesta :

choixongdong choixongdong

25-01-2018

x^2-4=0
x^2 = 4
x = + - 2

answer
x=-2 or x=2

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