0 3x 2 5x 5 July 8, 2019 16 32 64 128 3x 2 5x 50 0 X 3 3x 2 5x 5 0 Y 0 5x 2 3x 2 5 15x 2 3x 2 5x при x 0 5 Y =- 0 5x 2 3x 3 5 3x 2 5 5x 10 0 0 5x 2 3x 1 5 =- 25 3x 2 2 √ 5x 5 0 3x 2 2 √ 5x 5 0 by quadratic formula