Jawaban:
C. -3
Penjelasan dengan langkah-langkah:
4ˣ⁺³ = ³✓(8ˣ⁺³)
kedua ruas dipangkatkan 3
(4ˣ⁺³)³ = [³✓(8ˣ⁺³)]³
4³ˣ⁺⁹ = 8ˣ⁺³
(2²)³ˣ⁺⁹ = (2³)ˣ⁺³
2⁶ˣ⁺¹⁸ = 2³ˣ⁺⁹
6x + 18 = 3x + 9
6x - 3x = 9 - 18
3x = -9
x = -9/3
x = -3
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Jawaban:
C. -3
Penjelasan dengan langkah-langkah:
4ˣ⁺³ = ³✓(8ˣ⁺³)
kedua ruas dipangkatkan 3
(4ˣ⁺³)³ = [³✓(8ˣ⁺³)]³
4³ˣ⁺⁹ = 8ˣ⁺³
(2²)³ˣ⁺⁹ = (2³)ˣ⁺³
2⁶ˣ⁺¹⁸ = 2³ˣ⁺⁹
6x + 18 = 3x + 9
6x - 3x = 9 - 18
3x = -9
x = -9/3
x = -3