|x + 3| > 5
|x + 3| > 5
Jawab:
|x + 3| > 5
|x + 3|² > 5²
x² + 6x + 9 > 25
x² + 6x + 9 – 25 > 0
x² + 6x – 16 > 0
(x + 8) (x – 2) > 0
x = -8 atau x = 2
Hp = {x < -8 atau x > 2}
Jawab:
|x + 3| > 5
|x + 3|² > 5²
x² + 6x + 9 > 25
x² + 6x + 9 – 25 > 0
x² + 6x – 16 > 0
(x + 8) (x – 2) > 0
x = -8 atau x = 2
Hp = {x < -8 atau x > 2}
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