5 13 2x 3 July 8, 2019 16 32 64 128 5 13 2x )=- 19 3x 13 2x 5 3x 5 2x 3 4x 13 13 2x 5 x 3 13 4x 5 2x 3 )+ 4 8 5 2x 3 )= 13 6x 2x 39 5 13 5 3x 2 2x 13 6x 13 5 2x 3 7 (- 5 2x )=- 13 3x 13 2x 5 2 3x 7 3x 5 2x 13 2 x 2 X 5 2x 13 6x 3 5 2x 3 )-( x 8 )= 13