Let’s take –3
Square of –3 = (–3) 2
= –3 × –3
= 3 × 3
= 9
So, square of a number is always positive
And, we saw that 3 2 = 9
So, (–3) 2 = 3 2
Therefore, when we square a negative number,
the answer is same as that when we square a positive number
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