What is the solution of log3x − 725 = 2?

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Luis Evrythng · Answer 1 · 2017-08-22T09:06:25+0000

so remember

log_(a)x=y

means a^y=x so

log_(3x-7)25=2

means (3x-7)^2=25
(3x-7)^2=25
square root both sides
3x-7=+/-5
3x-7=5
3x-7=-5
add 7
3x=12
3x=2
divide 3
x=4
x=2/3

x=4 or 2/3