Answer
$0$
Work Step by Step
$\lim _{x\rightarrow \infty }\dfrac {5x+3}{x^{3}-6x+2}=\dfrac {\dfrac {d}{dx}\left( 5x+3\right) }{\dfrac {d}{dx}\left( x^{3}-6x+2\right) }=\dfrac {5}{3x^{2}-6}=\dfrac {5}{\infty }=0$
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