Selesaikan persamaan nilai mutlak berikut | 5x-1 | = | 11 - 2x |
Matematika
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Pertanyaan
Selesaikan persamaan nilai mutlak berikut | 5x-1 | = | 11 - 2x |
1 Jawaban
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1. Jawaban Anonyme
Bab Nilai Mutlak
Matematika SMA Kelas X
|5x - 1| = | 11 - 2x |
(5x - 1)² = (11 - 2x)²
(5x - 1)² - (11 - 2x)² = 0
(5x - 1 + 11 - 2x) (5x - 1 - 11 + 2x) = 0
(3x + 10) (7x - 12) = 0
3x + 10 = 0
3x = -10
x = -10/3
7x - 12 = 0
7x = 12
x = 12/7
HP = { -10/3, 12/7 }