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  • Brainly User
2015-05-21T23:54:10+05:30

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Log9(x²+5)=1
using property of log
x²+5=9^1
x²+5=9
x²=4
x=+2  because log is not negative so -2 will not hold 
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gd job dude!!!
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:) i said no ty's ok?
  • Brainly User
2015-05-22T00:17:05+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
For natural log which is to the Base e we have Log 9(x^2+5)=1 x^2+5=9^1 x^2=4 x=+-2 Neglecting the negative value we get x=2
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