solve the equation e

^{2x }-4e^{x}-5=0-
CREATE FREE ACCOUNT Access thousands of free resources from expert tutorsComment on posts and interact with the authorsAsk questions and get free answers from tutorsView videos, take interactive quizzes, and more!
- Become a Student
- Become a Student
- Sign In

solve the equation e^{2x }-4e^{x}-5=0

Tutors, please sign in to answer this question.

Solve by factoring,

(e^{x }- 5)(e^{x} + 1) = 0

Since e^{x} > 0, the only solution is e^{x} - 5 = 0.

x = ln5 <==Answer

Michael K.

Effective Physics, Comp Sci, Math Tutor for HS and College Students

Staten Island, NY

4.9
(142 ratings)

Anthony G.

Love math and science and passionate about teaching what I know

Orange, NJ

4.6
(252 ratings)

Alain A.

Mr. A., Mathematics instructor

Newark, NJ

4.9
(70 ratings)