Question

Someone please explain this to me

Answer 1

That last denominator (x^2 - 4) can be factored into (x + 2)(x - 2)
So, the LCM of the 3 denominators is (x + 1)(x + 2)(x - 2)

Answer 2

\(\bf \textit{keep in mind that }a^2-b^2 = (a-b)(a+b)\qquad thus\\ \quad \\
x^2-4\implies x^2-2^2\implies (x-2)(x+2)\)

Answer 3

Ohhhhhhhh

Answer 4

so add (x-2)(x+2)?

Answer 5

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