Conner and Jana are multiplying (3^5 6^8)(3^9 6^10)

Conners work
(3^5 6^8)(3^9 6^10) =3^5+9 6^8+10 = 3^14 6^18

Janas work

(3^5 6^8)(3^9 6^10) =3^5•9 6^8•10 = 3^34 6^80

Is either of them correct? Explain your reasoning