22-10-2020
Mathematics

contestada

What are the solution(s) of x2-4=0?
X=-4 or X=4
X=-2 or y= 2

Respuesta :

timothyyang timothyyang

22-10-2020

Answer:

2

Step-by-step explanation:

First you add 4 on both sides

X^2=0

Then you take square on both sides

X=+- the square root of 4

Simplify that

X=plus or minus 2

The answer can be either -2 or +2 (which is just 2)

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