Question

Помогите с решением неравенства)

Answer 1

$\frac{14x-(x+2) ^{2} }{4}*4\ \textless \ ( x^{2} -1)*4$
14x - x² - 4x - 4 < 4x² - 4
14x - x² - 4x - 4 - 4x² + 4 < 0
- 5x² + 10x < 0
x² - 2x > 0
x( x - 2) > 0
        +                    -                      +
__________₀__________₀___________
                   0                    2
  x ∈ (- ∞ ; 0)∪(2 ; + ∞)