Find the least common denominator for the following rational expressions. 18/r- 4, -5r/r^-5r+4, r+7/r^-4r-5 o (1-1)(r – 4)(r-5) o (r - 1)(r + 4)(r-5) 0 (-1)(r+ 1)(r-4)(r-5) (r- 1)(r+ 1)(r + 4)(-5)

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asked Feb 19, 2021 97.6k views

4 votes

Find the least common denominator for the following rational expressions.

18/r- 4, -5r/r^-5r+4, r+7/r^-4r-5
o (1-1)(r – 4)(r-5)
o (r - 1)(r + 4)(r-5)
0 (-1)(r+ 1)(r-4)(r-5)
(r- 1)(r+ 1)(r + 4)(-5)

Mathematics
middle-school

Dan Largo asked

by Dan Largo

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2 Answers

4 votes

Answer:

C (r-1)(r+1)(r-4)(r-5)

Explanation:

Tim Siwula answered Feb 21, 2021

by Tim Siwula

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2 votes

Answer: (r-1)(r+1)(r-4)(r-5)

Explanation:

Maral answered Feb 24, 2021

by Maral

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