-2 squared is +4.
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The number times itself. For example 2 squared = 2x2=4 so 2 squared =4
It is 8
-3 squared by 2
The square root of 5 is closer to 2. 2 squared is 4 and 3 squared is 9. 4 is much closer to 5 than 9.
2 squared = 2^(2) = 4