Ответ:
а) x= - 15
б) x1 = -1, x2 = -2, x3 = 2
Объяснение:
а) 3(2x+1) + 36 = 2x - (6-x)
6x + 3 + 36 = 2x - 6 - x
6x + 39 = 3x - 6
6x - 3x = -6 - 39
3x = - 45
x = - 15
б) x^2 * (x+1) - 4 (x+1) = 0
(x+1) * (x^2 - 4) = 0
x + 1 = 0 ; x^2 - 4 = 0
x = - 1
x = - 2
x = 2