4y 10 2y 6 July 8, 2019 16 32 64 128 3x 4y 10 6x 2y 40 4y 6c 10 /( 2y 4c 1 3x 4y 10 2y 4x 6 3x 2y 10 6x 4y 20 10 4y 6 2 2y 2 10 4y 6 2 2y 3