Question

(х+4)√(-x)>0. ........

Answer 1

ОДЗ: x ≤ 0

Нули: x = -4; x = 0

__-___(-4)_____+_____(0)__________

x∈ (-4; 0)

Answer 2

(x+4)√(-x)>0
-x>0;x<0
√(-x)>0

x+4>0
x>-4

{x<0
{x>-4

x€(-4;0)