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Bab PertidaksamaanMatematika SMP Kelas IX
terdapat 2 kemungkinan bentuk
1] (√x) - 3 < 2
√x < 2 + 3
√x < 5
√x² < 5²
x < 25
atau
x > -5
syarat
x ≥ 0
HP = { 0 ≤ x < 25 }
2] √(x - 3) < 2
√(x - 3)² < 2²
x - 3 < 4
x < 4 + 3
x < 7
x - 3 > -4
x > -4 + 3
x > -1
syarat
x - 3 ≥ 0
x ≥ 3
HP = { x | 3 ≤ x < 7, x ∈ bilangan real }