Try using wrapper_html like this:
<%= f.input :terms,
:as => :boolean,
:label => false,
:boolean_style => :inline,
:wrapper_html => { :style => 'display: inline' }
%>
Accept <%= link_to "Terms of use", terms_path,:remote => true %>
and <%=link_to "privacy Policy", privacy_path, :remote => true%>