What are the solution(s) of x2-4-0?
X= 4 or X=4
X=-2 or x= 2
x=2
x=4
1 answer:
Answer:
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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