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yeah but the square root of any number will always be a positive and a negative, two possibilities. Square root of 16 is 4, but it is also -4, etc
Yes, that is true but you're forgetting that whenever you have an equation like this, with squares on both sides, don't you just remove the squares?
Like if you had the square root of x squared. You would just remove both the square and the square root. Right?
true... I can see where you're coming from with that, but when you think of the logic of it, you can see where the discrepancy is. I don't know if there's any rule that would disprove that or not. hmmm...