1) We can simplify this by applying the Distributive property, a.k.a FOIL.
[tex]\begin{gathered} 12(3x+5y) \\ 12\cdot3x+12\cdot5y \\ 36x+60y \end{gathered}[/tex]2) Thus, we can tell that when we expand this expression, we get a simpler one and this is:
[tex]36x+60y[/tex]