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Posted by **Amy** on Wednesday, January 26, 2011 at 8:21pm.

Steps too please

answer is ln 1.6 / 3 ln 2

- Precalc -
**helper**, Wednesday, January 26, 2011 at 9:20pmsolve 5(2^(3x)) = 8

5(2^(3x)) = 8

2^3x = 8/5

2^3x = 1.6

take logarithms of both sides

3x log 2 = log 1.6

Divide both sides by 3 log 2

x = log 1.6/(3 log 2)

- Precalc -
**Amy**, Wednesday, January 26, 2011 at 9:23pmthank you

- Precalc -
**helper**, Wednesday, January 26, 2011 at 9:38pmYou're welcome!

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