²log(x²+7x-1) = ²log(2x²+2x+5)
Matematika
echankt91
Pertanyaan
²log(x²+7x-1) = ²log(2x²+2x+5)
1 Jawaban
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1. Jawaban newwiguna
²log(x² + 7x - 1) = ²log(2x² + 2x + 5)
x² + 7x - 1 = 2x² + 2x + 5
x² - 2x² + 7x - 2x - 1 - 5 = 0
-x² + 5x - 6 = 0
x² - 5x + 6 = 0
(x - 3)(x - 2) = 0
x - 3 = 0
x = 3
x - 2 = 0
x = 2