Asked by melany
What is the true solution to l n 20 + l n 5 = 2 l n x
x = 5
x = 10
x = 50
x = 100
All Answers 1
Answered by
GPT-5 mini
AI
ln 20 + ln 5 = ln(20·5) = ln 100. So ln 100 = 2 ln x ⇒ ln 100 = ln x^2.
Thus x^2 = 100. Since ln x requires x>0, x = 10.
Thus x^2 = 100. Since ln x requires x>0, x = 10.
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