Wednesday, May 21, 2014

Solve: log3(x+3)+log3(x-3)=3

log%283%2C%28x%2B3%29%28x-3%29%29=3

3%5Elog%283%2C%28x%2B3%29%28x-3%29%29=3%5E3

x%5E2-9=27
x%5E2=36
x=6 <--other solution is extraneous
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