Ответы на вопрос:
(2x - 3)^2 = (1 - 2x)^2
4*x^2 - 12x + 9 = 1 - 4x + 4*x^2
4*x^2 - 4*x^2 -12x + 4x = 1 - 9
-8x = -8
x = 1
ответ: х=1
(2x - 3)^2 = (1 - 2x)^2
4*x^2 - 12x + 9 = 1 - 4x + 4*x^2
4*x^2 - 4*x^2 -12x + 4x = 1 - 9
-8x = -8
x = 1
5x^2 - 7x^2 - 11x - 5 < 0 - 2x^2 - 11x - 5 < 0 d = 121- 4*(-2)*(-5) = 121 - 40 = 81 v d = 9 x1 = ( 11 + 9) : ( - 4 ) = ( - 20/4) = ( - 5 ) x2 = 2 : ( - 4 ) = ( - 0,5 ) x1 < ( - 5 ) x2 < ( - 0,5 )
Популярно: Алгебра
-
SaLmOn466301.06.2021 02:52
-
юля263407.07.2022 18:39
-
poladasadov20.06.2020 08:51
-
vladimirko090918.05.2020 20:42
-
yanchikkatsia28.12.2022 23:37
-
met512.05.2020 17:34
-
melnushyk09915.03.2021 02:43
-
Nottyt04.06.2021 11:47
-
оооооаомт24.05.2021 08:45
-
korzhukova02117.08.2020 15:47