By definition, the superscripts of two exponentials that
have matching bases and they are multiplied, must be
added.
Therefore, (e^3x)*(e^2x) = e^(3x+2x) =
e^(5x)
The equation will
become:
e^(5x) - 3 = 2
e^(5x)
= 3 + 2
e^(5x) = 5
We'll take
natural logarithms both sides:
ln e^(5x) = ln
5
We'll apply the power
rule:
5x*ln e = ln 5
But ln e
= 1
5x = ln 5
x = ln
5/5
The solution of the equation is x = (ln
5)/5.
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