For this case we have that by definition, the distributive property establishes that:
[tex]a (b + c) = ab + ac[/tex]
Then, given the following expression:
[tex]5y (8y-3)[/tex]
We can rewrite it as:
[tex](5y) (8y) - (5y) (3) =\\40y ^ 2-15y[/tex]
Thus, we have that the expression obtained is an expression equivalent to the given one.
ANswer:
[tex]40y ^ 2-15y[/tex]