(a+5) (2a-3)

Using the distributive property, we can expand the expression as follows:

(a+5)(2a-3) = a(2a-3) + 5(2a-3)

Now, let's simplify each term:

a(2a-3) = 2a^2 - 3a
5(2a-3) = 10a - 15

Combining the simplified terms, we have:

(a+5)(2a-3) = 2a^2 - 3a + 10a - 15

Simplifying further:

(a+5)(2a-3) = 2a^2 + 7a - 15