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How to solve this math? Please explain.

How to solve this math? Please explain.-example-1
User Jgosar
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2 Answers

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could be 8? But it can be 4+-4
User Geny
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Answer:

Explanation:

If x2 = 16 , then the possible values of x are +4, meaning 4 and -4.

4+-4=0, so the sum of all possible values of x are 0.

User Steve Lionel
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