October 2019 1 83 Report
1. |2x-1| = 7
√(2x - 1)² = 7²
4x2 - 4x + 1 = 49
4x2 - 4x + 1 - 49 = 0
4x² - 4x - 48=0
x - x - 12=0
(x - 4)(x+3)=0
x = 4 atau x = -3

Kerjakan soal di bawah ini sesuai dengan contoh di atas
2. |2x - 1| = |x + 3|


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