Tentukan nilai x jika : ㏒ (2x²-1) = ㏒ (4-3x)
Matematika
UjangFirman
Pertanyaan
Tentukan nilai x jika :
㏒ (2x²-1) = ㏒ (4-3x)
㏒ (2x²-1) = ㏒ (4-3x)
1 Jawaban
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1. Jawaban andhikahanif
mencari nilai x
㏒ (2x² - 1) = ㏒ (4 - 3x)
2x² - 1 = 4 - 3x
2x² + 3x - 1 - 4 = 0
2x² + 3x - 5 = 0
(2x + 5) (x - 1) = 0
x = -5/2 atau x = 1