Решите неравенство 2х^2-11х+23>(х-5)^2

Question

Решите неравенство 2х^2-11х+23>(х-5)^2

---

Answer 1

2x²-11x+23-x²+10x-25>0
x²-x-2>0
x1+x2=1 U x1*x2=-2
x1=-1 U x2=2
x∈(-∞;-10 U (2;∞)

Comments

спасибо;*