Question

4e^(0.13t)-0.2e^(0.26t)=7.2

Please help me solve this.

Answer 1

hint:
if I make this variable change:
\[\Large {e^{0.13t}} = z\]
I can rewrite the equation like below:
\[\Large 4z - \frac{1}{5}{z^2} = \frac{{36}}{5}\]
please solve that equation for \(z\)

Answer 2

Appreciate it. Thanks!