SOLUTION: If 3^(2x) + 9 = 10(3^x) solve for x. I know that x = 2 but only because of guess an check. I know I need to use a log somewhere and other basic algebra but I can't figure out wh

Question 376226: If 3^(2x) + 9 = 10(3^x) solve for x.
I know that x = 2 but only because of guess an check. I know I need to use a log somewhere and other basic algebra but I can't figure out what all the steps are. I have looked through my book and some sites online and they didn't help.
Thanks!
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let , then ,

Two solutions:

.
.
.

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