if you're trying to solve for x, and it is equal to zero, then it would be -3. plug it in and it would all cancel out
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√HOL
√HOL
√HOL
√HOL
√HOL
√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL√HOL
<span>r means radius so it can't be negative.
<=>
A = 4 pi r²
r = sqr (A / 4pi)
</span>
D all the above. I had this question also