A. |x| + 4 = 10 B. 2|x| = 13 C. 5 = 2|p| = -3 D. 2/3 |2x + 1| = 4
Matematika
Nandaalfiyah8
Pertanyaan
A. |x| + 4 = 10
B. 2|x| = 13
C. 5 = 2|p| = -3
D. 2/3 |2x + 1| = 4
B. 2|x| = 13
C. 5 = 2|p| = -3
D. 2/3 |2x + 1| = 4
1 Jawaban
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1. Jawaban ErikCatosLawijaya
Mapel : Matematika
Kelas : X SMA
Bab : Mutlak
Pembahasan :
|x| + 4 = 10
|x| = 6
Maka x = -6 atau x = 6
Hp : {-6 , 6}
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2|x| = 13
|x| = 13/2
Maka x = -13/2 atau x = 13/2
Hp : {-13/2 , 13/2}
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2/3|2x + 1| = 4
|2x + 1| = 6
(2x + 1)² - 6² = 0
(2x + 7)(2x - 5) = 0
x = -7/2
x = 5/2
Hp : {-7/2 , 5/2}