x(x+5)/x+3≤0
x+3≠0
x≠-3
x(x+5)≤0
x≤0 и x+5≤0
x≤-5
Ответ: (-∞, -5] и (-3, 0]
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x(x+5)/x+3≤0
x+3≠0
x≠-3
x(x+5)≤0
x≤0 и x+5≤0
x≤-5
Ответ: (-∞, -5] и (-3, 0]