Solve exponential equation?
4e^(-x) + 2 = -2
How do I solve this
(1 votes)
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ByVvvvKfby
Hello folks, Can you please explain to me where the -5x comes from?
There is no solution, because:
4e^(-x) +2 = -2 =>
4e^(-x) = -4 =>
e^(-x) = -1 =>
-x = ln(-1) =>
x = -ln(-1)
And with that the equation No solution, because
4e^(-x)+2=-2 I -2
4e^(-x)=-4
e^(-x)=-1
e^x=-1 ln()
X=ln(-1)
=> not defined
So no solution