Multiply (4a-5)(6a-5)
Using the distributive property, we can multiply each term from the first expression with each term from the second expression:
(4a - 5)(6a - 5) = (4a)(6a) + (4a)(-5) + (-5)(6a) + (-5)(-5)
= 24a^2 - 20a - 30a + 25
= 24a^2 - 50a + 25
So, (4a - 5)(6a - 5) = 24a^2 - 50a + 25.