Question

вопрос задан 15.10.2021
прошу решить до 15.10.2021​

Answer 1

$x + y = 11 \\ xy = 24 \\ \\ x = 11 - y \\ xy = 24 \\ \\ (11 - y)y = 24 \\ 11y - {y}^{2} - 24 = 0 \\ - {y}^{2} + 11y - 24 = 0 \\ {y}^{2} - 11y + 24 = 0 \\ d = ( - 11) - 4 \times 1 \times 24 = \sqrt{25} = 5 \\ y = \frac{11 - 5}{2 \times 1} = 3 \\ y = \frac{11 + 5}{2 \times 1} = 8 \\ x = 11 - y \\ x = 11 - 3 = 8 \\ x = 11 - 8 = 3$

ответ (3;8) и(8;3)