1/2[ln x + ln 13 + ln(x^2 -25) -ln(x+5)

condense logarithims
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1 Answer

log(x)+log(13)=log(13x)

log(line)=log[13x*(x^2-25)/(x+5)]

1/2 log(z)=log(root(z))

hole thang=ln[13x*(x^2-25)/(x+5)]^1/2
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