2 2y 1 )- 4 July 8, 2019 16 32 64 128 2 2y 1 4 5 2y 2 )( 4y 1 2 2y 1 )- 3y 4 y 2y 2 4y 1 0 2 1 4x 2y 3 2y 1 2 4y2 5 2y 2 3y 4 1 4 4x 2y 2 4xy 1 2 3 3 2y 1 3y 4 0 2 3y 1 2y 2 1 4y 3 Y 4 2 2y 1 4 2y 1 )= 2 3y 5 3y 2 3 4 1 2y 4 6 2y 1 )- 2 4y )= 4 X 2 2y 4 1
