# How do you simplify #\frac { 8a } { a ^ { 2} - 2a - 35} - \frac { 56} { a ^ { 2} - 2a - 35}#?

The two fractions can be written as one because their denominators are already the same:

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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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