2x 4 5x 9 July 8, 2019 16 32 64 128 2x 4 5x 9 180 10x 3 2x 4 )= 5x 9 3 2x 4 1 5x 9 4 2x 1 )= 5x 3x 9 5x 4 4 2x 9 )+ 5 5x 4 9x 3 2x 2 4x 8 6 4 3 2x )= 5x 9 2x 3y 4 5x 2y =- 9 4 2x 1 )-( 5x 9 2x 10 5x 4 90 4x 2x 4 =- 9 5x 8 2x 5 5x 4 90 2x 3 5x 4 5x 9 )+ 16 4 2x 3 )= 5x 9 2x 4 5x 3 10x 2 9 0