4 5x 2 )=- 5 5x 3 July 8, 2019 16 32 64 128 14 2 5 3 5x 48 4 5x 4 5x 2 5 7x 3 4 left 5x 2 right )=- 5 left 5x 3 right 3 5x 5 2 5x 1 4 5 x 5 x 5 x 5 x 5
