How do you solve #x^2=16#?
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To solve the equation (x^2 = 16), you need to isolate (x). Take the square root of both sides of the equation. Remember that since (x^2 = 16), (x) could be either positive or negative.
[ \begin{align*} x^2 &= 16 \ \sqrt{x^2} &= \sqrt{16} \ |x| &= 4 \ x &= \pm 4 \end{align*} ]
So, the solutions to the equation (x^2 = 16) are (x = 4) and (x = -4).
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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