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What are the solution(s) of x2-4=0
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4 votes
What are the solution(s) of x2-4=0

User Jvasak
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2 Answers

4 votes
Is that x^2 -4 = 0?
Then the two solutions are x = 2 and x = -2

User Jake Long
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1 vote
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)
User Joey Mason
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5.2k points
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