# When can I add exponents?

Note that this does not apply when the bases are different.

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You can add exponents when the bases of the exponents are the same. Simply add the numerical coefficients of the terms and keep the base unchanged. For example, (2^3 + 2^4 = 2^3 \times (1 + 2) = 2^3 \times 3 = 24).

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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.

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