Simplifying Rational Functions With Holes

Let $f$ be the rational function defined by $f(x) = \frac{(x + 4)(x - 2)}{(x + 4)(x + 1)}$ . Which of the following is an equivalent representation of the function $f$ ?

$f(x) = \frac{x + 4}{x + 1}$ for $x \neq -4$

$f(x) = \frac{x - 2}{x + 4}$ for $x \neq -1$

$f(x) = \frac{x - 2}{x + 1}$ for $x \neq -4$

$f(x) = \frac{x - 2}{x + 1}$ for $x \neq -1$

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