Ответы на вопрос:
{x - y = - 7{xy - 4y + x - 4 = 0 { x = y - 7{ y^2 - 10y - 11 = 0δ = 100 + 44 = 144 = 12^2y1 = (10 + 12)/2 = 22/2 = 11y2 = (10 - 12)/2 = -2/2 = - 1{ x = y - 7 = 11 - 7 = 4 { y = 11 { x = y - 7 = - 1 - 7 = - 8{ y = - 1 ответ: ( - 8; - 1) ; ( 4; 11)
Популярно: Алгебра
-
malyshkala123417.02.2021 11:57
-
Вандализм05.04.2021 00:41
-
liza0454310.06.2023 10:32
-
Ghanali12.01.2021 15:41
-
mike43225.05.2020 02:31
-
julealeo10.03.2020 05:34
-
Danila2901200626.07.2022 11:12
-
slava20syper25.06.2020 02:14
-
replinova27.03.2020 22:47
-
liza144929.10.2022 08:48