2x 22 4x 2 July 8, 2019 16 32 64 128 2x 22 4x 2 180 2x 2 4x 22 0 2 x 3 22 2x 28 4x Mnt 2x 22 4x 2 2x 2 (- 4x 24 )=- 22 2x 3 4x 2 )=- 22