Question

Math Quiz - 35 poin
Materi Pertidaksamaan Bentuk Akar (Tingkat SMA)
Difficulty: 35%

Answer 1

Verified answer

√(x + 10) < √(x + 2) + 2
Kuadratkan kdua rua
x + 10 < x + 6 + 4√(x + 2)
4 < 4√(x + 2)
√(x + 2) > 1
x + 2 > 1
x > -1 ... (1)

√(x + 10) ≥ 0
x ≥ -10 ... (2)

√(x + 2) ≥ 0
x ≥ -2 ... (3)

Nilai x yg memenuhi :
Irisan (1) (2) dan (3)
x > -1

Opsi E