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Answer:
[tex]x=\pm\sqrt{10}[/tex]
Step-by-step explanation:
It is given that,
[tex]x^2=10[/tex]
We need to find the value of x.
[tex]x=\pm\sqrt{10}[/tex]
Plus- minus will come before 10. So, the correct option is (A). Hence, this is the required solution.