# How do you evaluate #(-9)+14#?

There are various way of approaching this. I am going to show you one you may not have seen before.

There is no sign to the left of the brackets so it is automatically:

In multiply, if the signs are different then the answer is negative

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~~~~~~~~~~~~ More efficient approach ~~~~~~~~~~~~~~~~~~~~~~
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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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