4 2x 9 5x July 8, 2019 16 32 64 128 5x 4 4 2x 9 )+ 5 10x 3 2x 4 )= 5x 9 6 4 3 2x )= 5x 9 4 2x 1 )= 5x 3x 9 3 2x 4 1 5x 9 2x 4 5x 9 180 15x 4 2x 9 5x 6 0 4 2x 1 )-( 5x 9 4x 2x 4 =- 9 5x 8 4 2x 3 )= 5x 9 3 x 4 )+ 2x 5x 9 3x 4 )+( 2x 7 )+( 9 5x 5x 4 3 2x 9 5x 8 2x 9 5x 4 7x 5x 2 4 2x 9
