5 2x 3 1 125 July 8, 2019 16 32 64 128 √ 3 5 1 2x 125 27 5 2x 1 1 /( 125 x 3 5 2x 1 5 2x 3 125.24 5 2x 1 5 2x 3 125x24 Root 3 5 1 2x 125 27 5 2x-1=125