3 2 x 2 81 July 8, 2019 16 32 64 128 3 x 2 81 0 3 2 x 81 16 X 3 2 2 81 4 3 x 2 5x 2 1 81 X2 6x 2 2 x 3 2 81 3 5x 2 )( x 2 − 81 )= 0 2 3 x *( 3 2 2x 81 16 Diketahui penyelesaian 3 x2 x 2 81 x 2