9 11 2x x 4 July 8, 2019 16 32 64 128 X 4x 11 9 2x 9 2x 11 )- 5 3 x 2 )=- 410 If 4x 9 11 2x then x 1 11 2x 1 )- 5 x 4 )= 9 2x 5 )( x 9 )= 11 4x 9-2x 11