1 5x 3 4 1 2x July 8, 2019 16 32 64 128 5x 3 )( 2x 1 )-( 2x 1 2 4 0 5x 3 4 1 2x 5 1 5x 2 3 1 2x )= 1 4 3x 2 5x 3 1 2x )= 4 x 1 )- 6 1/5 + 2/3