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Mathematics 17 Online
OpenStudy (anonymous):

e

OpenStudy (kropot72):

First subtract 4 from both sides to get: \[3e ^{2x}=24-4=20\] Then take natural logs of both sides to get: \[\ln 3+2x=\ln 20\] Can you solve it now?

OpenStudy (anonymous):

not really lad, just started learning this stuff

OpenStudy (anonymous):

do you divide ln 3 and ln 20 together?

OpenStudy (kropot72):

\[\ln 3+2x=\ln 20\] Subtracting ln3 from both sides gives: \[2x=\ln 20-\ln 3\] Dividing both sides by 2 gives: \[x=\frac{\ln 20-\ln 3}{2}\] Now use your calculator to find x.

OpenStudy (anonymous):

thanks mate, will do

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