2x 3 4x 2 4x 2 July 8, 2019 16 32 64 128 2x 3 2 4x 2 0 2x 3 2 4x 2 9 2x 3 2 4x 2 =- 15 2x 3 4x 2 x 2 2x 3 )( x 2 )-( 4x 2 )( x 5 2x 3 x 2 4x 2 0 2x 3 10x 2 4x 20 2x 3 * y 2 )/( 4x 2 * y 2x 3 4x 2 3x 2 2x 3 )( 4x 2 8x 2 2x 3 )( 4x 2 5x 2 2x 3 6x 2 4x 2 7x 3 4x 2 2x 3 4x 2 2x 4 4x 3 3x 2 4x 1 x 2 1