Respuesta :

Recall that

[tex]\mathcal L_s\{t^ne^{ct}\}=\dfrac{n!}{(s-c)^{n+1}}[/tex]

Then

[tex]F(s)=\dfrac2{(s-5)^3}+\dfrac4{(s-5)^2}+\dfrac7{s-5}[/tex]