6 Решите уравнение a) 2x - 3 = 1 - 5x б) (2y + 3)5y = 10(y² - 1) в) (x - 2)(2x + 5) = 0

a) 2x - 3 = 1 - 5x 2x + 5x = 1 + 3 7x = 4 x = 4/7 б) (2y + 3)5y = 10(y² - 1) 10y² + 15y = 10y² - 10 15y = -10 y = -10/15 = -2/3 в) (x - 2)(2x + 5) = 0 x - 2 = 0 или 2x + 5 = 0 x = 2 или 2x = -5 x = 2 или x = -5/2 = -2,5 Ответ: a) x = 4/7 б) y = -2/3 в) x = 2, x = -2,5