√ 1 3 2x 2 81 July 8, 2019 16 32 64 128 3 2x 2 6 1 81 3 4x 1 2 * 3 2x 2 81 0 4x 3 2 2x 1 )( x 1 )= 810 3 2x 1 81 x 2 If 2 2x 9x 1 3 81 then x is 81 2x 2 1 3 √ 64