1 5 x 2 2x 15 July 8, 2019 16 32 64 128 2x 1 5 x 2 3 x 7 15 1 15 2x 5 )= x 2 9 Ln 2x 2 9x 5 )= 1 ln x 2 2x 15 2 5 x 15
