2 1 4x 0 July 8, 2019 16 32 64 128 X 2 1 4x 0 3x 2 4x 1 0 2x 2 4x 1 0 5x 2 4x 1 0 X 2 4x 1 0 quadratic formula 6x 2 4x 1 0 8x 2 4x 1 0 7x 2 4x 1 0 3x 2 4x 1 0 дискриминант 4x 2 4x 1 0 discriminant 9x 2 4x 1 0 12x 2 4x 1 0 4x 2 4x 1 0 дискриминант 2cos 2 4x 1 0 4x 2 4x 1 0 graph