Asked by ismail
solve for x without using tables or calculator (log 3 y)2 -log3 y2=3
Answers
Answered by
oobleck
Let u = log_3(y)
Then you have
u^2 - 2u = 1
(u-2)(u+1) = 0
u = 2 or -1
y = 9 or 1/3
Then you have
u^2 - 2u = 1
(u-2)(u+1) = 0
u = 2 or -1
y = 9 or 1/3
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