2 5 4x 10 July 8, 2019 16 32 64 128 2 5 4x 10 =- 43 2 3x 5 )= 4x 10 2 (- 2x 5 )+ 4x 10 2 x 5 )= 4x 10 3x 2 4x 5 )= 10 5x 2 4x 5 )= 8x 10 2 4x 5 )= 10x 2 2 4x 5 )- 5 10 5x 5 2 3 x )= 4x 10 10x 2 4x 5 )= 2x 10 10x 2 4x 5 0 2 4x 5 )= 10 solution 2 x 5 4x 10 2x 2 - 4x 5 - 4 10 3 2 4x 5 10