81x 4 0 July 8, 2019 16 32 64 128 81x 2 4 0 81x 4 16 0 81x 2 36x 4 0 81x 4 1 0 81x 4 3x 0 81x 4 100x 2 0 24x 4 81x 0 Solve 81x 2 4 0
