Kendra F. answered • 01/23/17
Tutor
4.7
(23)
Patient & Knowledgeable Math & Science Tutor
2ln(x) + 3ln(4)= 4
power rule
ln(x2) + ln(43) = 4
ln(x2) + ln(64) = 4
product rule
ln(64x2) = 4
e4 = 64x2
Switch from logarithmic form to exponential
e4/64 = x2
take the square root both sides
Sqrt(e4/64) = Sqrt(x2)
e2/8 = x
Tom K.
Nice job. Note that -e2/8 looks like a possible solution, but when we look at the original equation, we can eliminate this solution.
Report
01/23/17
Jackson L.
01/23/17