# If #2^x + 2^x + 2^x + 2^x = 2^7#, what is the value of #x#?

To divide exponential terms with the same base, use the rule:

Here, this gives us

Now, since we have the same base, it follows logically that we can equate the powers.

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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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