Y 2 1 3 7 6 July 8, 2019 16 32 64 128 F x y z ∑ 1 2 3 6 7 7 1 2 y )= 3 6 5y 2 *( y 3 5 )= 7 3 6 *( 2y 1 3y 7 3 y 1 )= 2 2y 6