Question

Решите неравенство (x-4)²/2-x ≥ 0

Answer 1

(x-4)²/2-x ≥ 0
(x²-8x+16)/(2-х)≥ 0
1. x²-8x+16=0
D=64-4*16*1=0
x=8/2=4
2. 2-х=0
х=2

Итог: Х≥4 и Х≠2