why root 4 can't be -2 as -2×-2 is also 4
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◾Heya
◾Here's what you are looking for
✴️Who said -2 can't be the answer to √4?
✅Even the reason why √4 = is written as +/- 2 and not just 2 because -2 × -2 = 4 as well as 2 × 2 is also = 4.
◾Keep this in mind and hope it helps ya...
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