Respuesta :

[tex]15(5b+3) \\ \\ 15 \times 5b + 15 \times 3 \ / \ distribute \\ \\ 75b + 15 \times 3 \ / \ simplify \\ \\ 75b + 45 \ / \ simplify \\ \\ [/tex]

The final result is: 75b + 45.
RELAXING NOICE
Relax