ОДЗ x≠1,4;
+ - +
_____[-5,2]___________(1,4)________
x ∈ [-5,2;1,4)
2)x-3,8/(x+5)(x-16)≤0
ОДЗ: x≠-5; x≠16;
- + - +
____(-5)_______[3,8]______(16)_____
x ∈ (-∞;-5) ∪ [3,8;16)
ОДЗ x≠1,4;
+ - +
_____[-5,2]___________(1,4)________
x ∈ [-5,2;1,4)
2)x-3,8/(x+5)(x-16)≤0
ОДЗ: x≠-5; x≠16;
- + - +
____(-5)_______[3,8]______(16)_____
x ∈ (-∞;-5) ∪ [3,8;16)