1 4 1 5x July 8, 2019 16 32 64 128 1 4 5x 1 8 5 x 6 1 4 5x 1 2 1 3 4 5x 1 2 1 x 4 )( 5x 1 2x 1 4 5x 1 3 2 3x 1 )+ 4 5x 1 1 7x 4 2 1 5x 4 1 5x 1 1 3 1 1 5x1 4 1 1 5x =- 4 5 5 x 4 1 2 x 1 5x 2 1 1 2x 4 5x 1 2 3 1 5x 1 4 1 2 x 5