S h o w t h a t : - 1 1 1 + 3 x 1 + 3 y 1 1 1 1 + 3 x 1 = 9 ( 3 x y z + x y + y x + z x ) Share with your friends Share 0 Rambaboo Khatana answered this 0 View Full Answer Md.Ashraf Khan answered this Hope this clears your query. 0