5 2x 1 5x 9 July 8, 2019 16 32 64 128 1 5 2x 92 )= 5x 5 2x 1 )- 3x 5x 9 2x 1 5x 5 90 180 2x 1 5x 5 90 5x 2x 2 5 1 9 5 x 5 x 5 x 5 x 5 5 x2
