Question

Solve the equation.
e^x-12e^-x-1=0

Answer 1

e^x -12^(-x) -1 = 0

Answer 2

\[e^x-12e ^{-x}-1=0 \]
multiply by e^x
\[e ^{2x}-12-e^x=0\]
put \[e^x=t\]
\[t^2-12-t=0\]
find t and then x