0 x 4 2 July 8, 2019 16 32 64 128 0 =( x 4 2 1 0 =( x 4 2 3 0 =( x 4 2 9 0 4 x 2 5 0 4 x 2 6 0 x 2y 4 0 4 х 25 0 x 4 2 25 0 x 4 10x 2 9 0 x 4 18x 2 81 0 x 4 8x 2 9 0 x 4 9x 2 0 x 2 2x 4 0 4 x 2 x 6 1 0 8 x 2 4