1) log_2(x+5)≥ 2 2) lg(x-3) ≤2

Question

1) log_2(x+5)≥ 2
2) lg(x-3) ≤2

Answer 1

2)
(x-3)≤100
x≤97
(-∞;97)
1)x+5≥0
x≥-5
x+5≥4
x≥-1
(-5;+∞)