rise
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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
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Can You Solve the Equation (3^x) - (3^-x) = 4?
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6 replies · 2K views
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"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.
razored
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Hmm.. to get you started, multiply everything by 3^(x).. from there everything is bright and clear.
sutupidmath
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then take a substitution of the form [tex]t=3^x[/tex] so u'll get a quadratic eq.
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once you get you solve the quadratic, don't forget to substitute 3x=t back again 
dirk_mec1
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Guys we've helped enough now let the OP do the math.
rise
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damn!you people are damn good!:P i tried many times but nothing happens..THX GUYS:)