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: Advanced
Hard!!!!
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05-22-2015
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Dragonballful23
Join Date: Dec 2011
Posts: 386
Quote:
Originally Posted by
eliseo
It's infinity
Here is how you solve. since 9^(x+2)=3^x, you can say 3^(2x+4)=3^x
Now, just like when you factor quadratic equations, take out the 3.
3x+4=x
2x=-4
x=-2!
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