--- a/hws/hw01.tex	Tue Sep 19 09:54:41 2023 +0100
+++ b/hws/hw01.tex	Thu Sep 21 12:57:27 2023 +0100
@@ -128,8 +128,14 @@
 \end{center}
 
   \solution{no, yes (why?), no.}
+
+
+\item Given the extended regular expression \texttt{[b-d]a?e+},
+  what does the equivalent basic regular expression look like?
   
-
+  \solution{$(b + c + d) \cdot (a + 0) \cdot (e \cdot e^*)$}
+  
+  
 \item \POSTSCRIPT  
 \end{enumerate}