1 5 2 x ≤ 10 4x July 8, 2019 16 32 64 128 1 2 4x 10 )+ 5 x 11 1 2 x 5 10 3 4x 1 2x - x 2 (- 5 4x 10 1 2 4x 10 5 x 3 6 3 4x 1 5 5x 2 10 x 2 3x 5 )= 10 x 1 )- 4x
