2 5 x 7 19 July 8, 2019 16 32 64 128 X 5 2 x 7 x 7 6x 19 7 2 5 x 19 3 7 5 x 2 )=- 197 6 19x 7 2 x 5 Let x =( 5 root 2 7 19 2 x 2 5 7 5 x 19 2 5 x 7