Find the least common denominator for the following rational expressions.
(r – 1)(r – 4)(r – 5)

(r – 1)(r + 4)(r – 5)

(r – 1)(r + 1)(r – 4)(r – 5)

(r – 1)(r + 1)(r + 4)(r – 5)

C is the correct answer on e2020

Step-by-step explanation:

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step-by-step explanation:

should you really be posting this isn't math boi.

answer for #1 is c

answer for #2 is d

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