Answer
$\dfrac{x+4}{x^{2}+5x+4}=\dfrac{1}{x+1}$
Work Step by Step
$\dfrac{x+4}{x^{2}+5x+4}$
Factor the denominator and simplify:
$\dfrac{x+4}{x^{2}+5x+4}=\dfrac{x+4}{(x+4)(x+1)}=\dfrac{1}{x+1}$
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