SOLUTION: -2log4x=log4 9 I think x=5 but the negative in front of the 2 is throwing me off please help

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: -2log4x=log4 9 I think x=5 but the negative in front of the 2 is throwing me off please help      Log On


   



Question 936567: -2log4x=log4 9
I think x=5 but the negative in front of the 2 is throwing me off please help

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Guessing your base is 4,

-2%2Alog%284%2Cx%29=log%284%2C9%29
log%284%2C%28x%5E%28-2%29%29%29=log%284%2C9%29
The arguments are equal.
x%5E%28-2%29=9
%281%2Fx%5E2%29=3%5E2
x%5E2=1%2F3%5E2

cross%28x=-1%2F3%29 or x=1%2F3

No logarithm negative value.

Answer by MathTherapy(10553) About Me  (Show Source):
You can put this solution on YOUR website!

-2log4x=log4 9
I think x=5 but the negative in front of the 2 is throwing me off please help
highlight_green%28x+=+1%2F3%29
You can do the check!!
===================
If you need a complete and detailed solution, let me know!!
Send comments, “thank-yous,” and inquiries to “D” at MathMadEzy@aol.com.
Further help is available, online or in-person, for a fee, obviously.
For FREE info and answers to questions about the ASVAB exam, the NYS 3 – 8 city/state wide exams,GENERAL
MATH and HOMEWORK QUESTIONS, or MATH QUESTIONS related to the Regents Integrated Algebra,
Regents Geometry, Regents Algebra 2/Trigonometry, SHSAT, COOP/HSPT/TACHS, PSAT, SAT, ACT, SSAT/ISEE,
GRE, CLEP, and the TASC/GED, you can visit: http://asvabstudyzone.freeforums.net/.