5x 2 2x 2 0 July 8, 2019 16 32 64 128 5x 2 2x 2 0 quadratic formula X 4 4x 3 5x 2 2x 2 0 2x 2 5x 2 0 дискриминант F x )= 0 5x 2 2x 2 x0 0 2x 1 2 5x 5 2 0 2x 5