- #1
rise
- 2
- 0
how can u solve this equation (3^x)-(3^-x)=4...hehe:P
please i really need it fast..TT
please i really need it fast..TT
Last edited:
Can You Solve the Equation (3^x) - (3^-x) = 4?
- Thread starter rise
- Start date
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Homework Help Overview
The discussion revolves around solving the equation (3^x) - (3^-x) = 4, which falls under the subject area of algebra, specifically exponential equations.
Discussion Character
- Exploratory, Assumption checking, Mathematical reasoning
Approaches and Questions Raised
- Participants suggest various approaches, including multiplying the equation by 3^(x) and making a substitution to transform it into a quadratic equation. Some express the need for the original poster to share their attempts to facilitate further guidance.
Discussion Status
The discussion has seen contributions that provide hints and suggestions for solving the equation. However, there is no explicit consensus on the method, and the original poster is encouraged to engage more actively in the problem-solving process.
Contextual Notes
The original poster expresses urgency in finding a solution, which may indicate constraints related to time or assignment deadlines. There is also a suggestion that the original poster has struggled with the problem previously.
- #2
statdad
Homework Helper
- 1,548
- 99
"please i really need it fast."
That's not how it works - you need to show some of your first tries, or explain what you've done that hasn't worked. At that time you may receive hints.
That's not how it works - you need to show some of your first tries, or explain what you've done that hasn't worked. At that time you may receive hints.
- #3
razored
- 173
- 0
Hmm.. to get you started, multiply everything by 3^(x).. from there everything is bright and clear.
- #4
sutupidmath
- 1,629
- 4
then take a substitution of the form [tex]t=3^x[/tex] so u'll get a quadratic eq.
- #5
Mentallic
Homework Helper
- 3,802
- 95
once you get you solve the quadratic, don't forget to substitute 3x=t back again 
- #6
dirk_mec1
- 755
- 13
Guys we've helped enough now let the OP do the math.
- #7
rise
- 2
- 0
damn!you people are damn good!:P i tried many times but nothing happens..THX GUYS:)
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