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# Article

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Keywords:
neutral equation; asymptotic behavior
Summary:
In this paper we study asymptotic behavior of solutions of second order neutral functional differential equation of the form $\Big (x(t)+px(t-\tau )\Big )^{\prime \prime }+f(t,x(t))=0\,.$ We present conditions under which all nonoscillatory solutions are asymptotic to $at+b$ as $t\rightarrow \infty$, with $a,b\in R$. The obtained results extend those that are known for equation $u^{\prime \prime }+f(t,u)=0\,.$
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