X 2 - 5 9x 0 July 8, 2019 16 32 64 128 X 2 9x 5 0 discriminant X 3 3x 2 9x 5 0 X 3 5x 2 9x 5 0 2 x2 9x 5 0 X 5 3x 4 8x 3 8x 2 9x 5 0 5 x 2 9x 4 0 Rozwiąż równanie x 3 3x 2 9x 5 0 X 5 9x 3 8x 2 72 0 X 2 3x 1 2 3x 2 9x 5 0 X 3 27 x 3 5 9x 2 0 9x 2 18 x 5 0 X 5 2 9x 45 0 5 x mũ 2 9x 2 0
