4x 2 7 6 3 x July 8, 2019 16 32 64 128 4x 2 3 5x 7 6 3 x 2 4x 3 2 16x x 6 )+ 7 10x 1 )= 0 9 3 4x 7 )=- 2 x 6 2 4x 9 7 6 )+ x 1 x 3