Solve the equation. (Round your answer to four decimal places.) e4x + 7e2x − 18

Algebra
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Solve the equation. (Round your answer to four decimal places.)

e4x + 7e2x − 18 = 0
x = 
Apr 14th, 2015

Factor the equation (e^2x + 9)(e^2x - 2) = 0. The first factor is always > 0, so we have e^2x - 2 = 0.

Then e^2x = 2, 2x = ln(2), and x = (1/2) ln(2) = 0.3466

Apr 14th, 2015

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