1 3 x 2 81 July 8, 2019 16 32 64 128 3 x 2 5x 2 1 81 3 x 2 9 x 1 810 3 x 2 9 x 1 810 0 3x 1 3x 2 81 9 x 1 3 y 2 81 9 x 3 2 1 81 Solve 3 2 x 1 81 X 2 4 3 1 81 3 mũ 2 x 1 81 Given 9 x 1 3 y 2 81 3 x 2 )* 9 x 5 )= 1 81 X 1 3 x 3 3x 2 4x 81 7 2x 1 )( x 1 )( 4x 3 2 810 3x x 1 2 3 81 3 2x 1 81 x 2