X 2 4x 7 =- 4x 2 July 8, 2019 16 32 64 128 X 2 4x 7 21 X 2 4x 7 2x X 2 4x 2 7 x 2 4x )+ 12 0 X 2 8x 7 )/( 4x 2 4x 1 0 64 x 2 4x 7 x 2 4x X 2 4x 2 7 x 2 4x )+ 12 X 6 3 2x 2 4x 7 4x 7 x − 4 ( 2 x − 1 ) ≤ − 7 2x 7
