SOLUTION: solve for x 2 to the power of x + 5 = 3 to the power of x I know the answer is x=2....but I cant prove it.

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: solve for x 2 to the power of x + 5 = 3 to the power of x I know the answer is x=2....but I cant prove it.      Log On


   

Question 254779: solve for x
2 to the power of x + 5 = 3 to the power of x
I know the answer is x=2....but I cant prove it.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2 to the power of x + 5 = 3 to the power of x
I know the answer is x=2....but I cant prove it.
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Graph the two sides and see where they intersect:
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graph%28400%2C300%2C-10%2C10%2C-10%2C20%2C2%5E%28x%29%2B5%2C3%5Ex%29
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Cheers,
Stan H.