Find the solutions of the exponential equation

Question

e^2x–4e^x+3=0

x1=? x2=?

Answer 1

let u = e^x and you have

(u-1)(u-3) = 0
so e^x = 1 or e^x = 3
got it?

Answer 2

what happens to the 2 in e^2x?
do u bring it down?

Answer 3

(e^x)^2 = e^2x