1. {$wxw$ | x,w belong to $(0+1)^*$} = = $(0+1)^*$
2. {$wxw$ | x,w belong to $(0+1)^+$} = = $0(0+1)^+0 + 1(0+1)^+1$
3. {$wxw^r$ |x,w belong to $(0+1)^+$} = = $0(0+1)^+0 + 1(0+1)^+1$
4. {$xww^rx$ | x,w belong to $(0+1)^+$} = = $(0+1)^+00(0+1)^+ + (0+1)^+11(0+1)^+$
5. {$xwyw$ | x,w belong to $(0+1)^+$} = = $(0+1)^+0(0+1)^+0 + (0+1)^+1(0+1)^+1$