4 x 2y 8 2x 3y 12 July 8, 2019 16 32 64 128 4 v x 2y 8 2x 3y 12 4 2 * x 2y 8 2x 3y 12 4 v x 2y 8 2x 3y 12 3 V 4 2 * x 2y 8 2x 3y 12 4x 3 2y 8 2x 3y 12
