5x 4 1 2 2x 1 2 July 8, 2019 16 32 64 128 3x 2 1 5x 1 4 2x x 2 5x 1 )/ 4 2x 1 )/ 2 x 2 4 5x 1 10x 1 2x 2 2 5 5x 3 )( 2x 1 )-( 2x 1 2 4 0 5x 1 2 3y 1 4 2x 2y 5x 3 x 2 4 9 4 1 2 x 2x 1 3 1 5x 2 3 1 2x )= 1 4 3x 2