X 2 81x 2 July 8, 2019 16 32 64 128 Y x 3 18x 2 81x 23 X 3 2x 2 81x 162 X 3 3x 2 81x 243 Penyelesaian persamaan 3x2 x 2 81x 2 X 4 9x 3 23x 2 81x 126 Solve 81x 27 x 2 X 2 - 81≤0
