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Rudiy27
3 years ago
7

Why does every positive number have 2 square roots?

Mathematics
2 answers:
ladessa [460]3 years ago
7 0
When you take the sqrt of 4 the answers are -2 and +2.
This is because if we take 2 square it, (2)^2, we get 4.
The same is true for -2.
(-2)^2 = 4 because -2 * -2 = +4

EastWind [94]3 years ago
4 0
Because they all have a negative and a positive part to it 
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