Log(3x-5)+1=2log(x+2)
Matematika
dianhendrawan98
Pertanyaan
Log(3x-5)+1=2log(x+2)
1 Jawaban
-
1. Jawaban Anonyme
log (3 x- 5) + log 10 = log (x+2)²
log 10(3x-5) = log (x +2)²
30x - 50 = (x +2)²
x² + 4x + 4 - 30x + 50 =0
x² - 26x + 54 =0
x1 = 13 + √115
x2 = 13 - √115