The function $$ f $$ is defined as follows. $$ f(x)=\frac{x^{2}+4 x-21}{x^{2}-4} $$ Find $$ f(-5) $$. Simplify your answer as much as possible. If applicable, click on

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1. Substitute $$ x = -5 $$ into $$ f(x) $$:
   $$
   f(-5)=\frac{(-5)^2+4(-5)-21}{(-5)^2-4}
   $$

2. Compute the numerator:
   $$
   (-5)^2+4(-5)-21 = 25-20-21 = -16
   $$

3. Compute the denominator:
   $$
   (-5)^2-4 = 25-4 = 21
   $$

4. Therefore, the value is:
   $$
   f(-5)=\frac{-16}{21}
   $$
$$ f(-5) = -\frac{16}{21} $$

The function is defined as follows.

Find .
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The function is defined as follows. Find . Simplify your answer as much as possible. If applicable, click on