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It is impossible. Let me go through a few examples so you understand what I mean.
1^2= 1 x 1= 1
2^2= 2 x 2=4
3^2=3 x 3= 9
Notice, a positive multiplied by a positive is positive
Lets try some negative numbers
(-1)^2= -1 x -1=1
(-2)^2=-2 x -2= 4
(-3)^2= -3 x -3= 9
Notice, a negative multiplied by a negative is positive.
Therefore, you would never be able to get a negative number when it is squared.
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