collect logs
log((x-5)/(x+9)) = log((x-7)/(x+9))
(x-5)/(x+9) = (x-7)/(x-9)
assuming x ≠ -9,
x-5 = x-7
5 = 7
no solution - typo?
even easier, add log(x+9) to both sides to get
log(x-5) = log(x-7)
x-5 = x-7
no solution
solve the equation
loga(x-5)- loga (x+9)=loga(x-7)-loga(x+9)
all a's are lower
please show work
2 answers
JJ, thanks so much! If you have any griakdnds here in the DFW area, you must, must, must take them to this museum! It's not to be missed! Is your grandson an artist or an architect? Thanks for sending to him!!!
3 answers