A. |3-2x|≥4 B.|3x+2|<5
Matematika
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Pertanyaan
A. |3-2x|≥4
B.|3x+2|<5
B.|3x+2|<5
1 Jawaban
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1. Jawaban 18Navillera
A.
| 3 - 2x | >= 4
3 - 2x >= 4
-2x >= 1
x <= -1/2
3 - 2x <= -4
-2x <= -7
x >= 7/2
Hp = {x <= -1/2 atau x >= 7/2}
B.
| 3x + 2 | < 5
-5 < 3x + 2 < 5
-5 - 2 < 3x < 5 - 2
-7 < 3x < 3
-7/3 < x < 1
Hp = {-7/3 < x < 1}