Question

What is the least common denominator of

Answer 1

Answer:

first answer is correct

Step-by-step explanation:

hello

as we can write

$x^2-1=(x-1)(x+1)$

the least common denominator is

x(x-1)(x+1)

hope this helps

Answer 2

Answer:

x + 1

x - 1

x

Step-by-step explanation:

The denominators are as follows.

(x - 1)

x^2 - 1

x

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The second denominator is actually made of two factors.

x^2 - 1 =(x + 1)(x - 1)

So the least common denominator is

x + 1

x - 1

x

You do not count the x - 1 twice.