4^x + 6(4^-x) = 5

Can anyone please help me, I have been trying to solve this for hours(Crying)

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- Dec 13th 2009, 01:02 PMtoonyLog question with negative exponent
4^x + 6(4^-x) = 5

Can anyone please help me, I have been trying to solve this for hours(Crying) - Dec 13th 2009, 01:10 PMPlato
- Dec 13th 2009, 01:23 PMtoony
Wow thanks. didnt notice that !(Doh)