Ответы на вопрос:
1) х -3х(1 - 12х) = 11 - (5 - 6х)(6х + 5) x - 3x + 36x² = 11- (25 - 36x²) - 2x + 36x² = - 14 + 36x² -2x = -14 x = 7 2) (6х - 1)(6х + 1) - 4х(9х + 2)= - 136x² - 1 - 36x² - 8x = - 1 - 8x = 0 x = 0 3) 16х(2 - х) + (4х + 5)^2 = 132x - 16x^2 + 16x^2 + 40x + 25 = 1 72x = - 24 x = - 24/72 x = - 1/3
Популярно: Алгебра
-
Alecsei278Z26.04.2022 01:20
-
юра41718.08.2021 21:45
-
svitlana12212.02.2022 07:23
-
MoLLoM25.01.2022 10:24
-
muzaparovakamil24.02.2020 12:18
-
zhezhuzina200630.12.2020 18:48
-
11111111117614.09.2022 23:24
-
Ferklo05.03.2021 08:17
-
Kakanya24.07.2022 23:48
-
Анастасия200799718.07.2022 11:09