1 2x 2 5 x 1 )= 0 July 8, 2019 16 32 64 128 2 2x 1 7 * 10 x 5 2x 1 0 5 * 2 2x 2 21 * 2 x 1 1 0 1 2x 5 x 2 3x 5 x 1 0 Log _( 1 5 )( 2x 2 5x 1 0