|5x + 3| = |3 - x|
5x + 3 = 3 - x или 5x + 3 = - (3 - x)
5x + x = 3 - 3 5x + 3 = - 3 + x
6x = 0 5x - x = - 3 - 3
x₁ = 0 4x = - 6
x₂ = - 1,5
- 2х (2у - 3х) - 4х (2х - у) = - 4ху + 6х² - 8х² + 4ху = - 2х²
(4c-d)*(6c+3d) 24c^2+12cd-6cd-3d^2 24c^2+6cd-3d^2
3 ^ ( x + 1 ) * 2 ^ x = 108
3 ^ x * 3 * 2 ^ x = 108
6 ^ x = 108 : 3
6 ^ x = 36
6 ^ x = 6 ^ 2
x = 2