Posted by **Matt Eaton** on Monday, February 18, 2008 at 9:09pm.

3^2x - 6 x 3^x + 9 = 0

Solve for x

I have no Idea what to do

- Algebra III -
**Matt Eaton**, Monday, February 18, 2008 at 9:14pm
sorry, the x in between 6 and three is multiplication... so it should be

3^2x - 6(3^x) + 9 = 0

- Algebra III -
**Reiny**, Monday, February 18, 2008 at 9:22pm
I am going to rewrite the equation for you

(3^{x})^{2} - 6(3^{x}) + 9 = 0

there is a strong hint there.

- Algebra III -
**Matt Eaton**, Monday, February 18, 2008 at 9:49pm
ahhh its a perfect square trinomial

(3^x - 3)^2 = 0

so x = 1

- Algebra III -
**Reiny**, Monday, February 18, 2008 at 9:53pm
Glad you got it!

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