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Nata [24]
3 years ago
14

Simplify the rational expression.  State any restrictions on the variable.

Mathematics
1 answer:
AveGali [126]3 years ago
7 0

Answer:

The last choice.

Step-by-step explanation:

\dfrac{k^2-k-2}{k^2-4k-5}=\dfrac{(k+1)(k-2)}{(k+1)(k-5)}=\dfrac{k-2}{k-5}

The value of k must be restricted from being one that makes the original denominator zero. Hence k ≠ -1 or 5.

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