t=w,w^{2}L.H.S(w+w^{2}) + (w^{2 }+ w)^{2} ........ 1 + 1 .....But every third term is of the form:(w^{3n} +w^{3n})^{2}=22There are nine such terms. Their sum is 36.The remaining are one. Their sum is 18.Adding them gives 54.