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=> (√(3x - 6))^2 ≥ 3^2
=> 3x - 6 ≥ 9
=> 3x ≥ 15
=> x ≥ 5
syarat : 3x - 6 ≥ 0 => 3x ≥ 6 => x ≥ 2
garis bilangan :
................. (5) xxxxxxxxxx
...... (2) xxxxxxxxxxxxxxx
jadi x ≥ 5
√(2x - 1) < √(x + 3) ....... kuadratkan
=> 2x - 1 < x + 3
=> x < 4
syarat :
1) 2x - 1 ≥ 0 => x ≥ 1/2
2) x + 3 ≥ 0 => x ≥ -3
garis bilangan
xxxxxxxxxxxxxxxxx (4) ....................
................ (1/2) xxxxxxxxxxxxxxxxx
..... (-3) xxxxxxxxxxxxxxxxxxxxxxx
jadi 1/2 ≤ x < 4