(3a-5)(4a-7)
To expand the expression (3a-5)(4a-7), we can use the distributive property:
(3a-5)(4a-7)
= 3a * 4a + 3a * (-7) - 5 * 4a - 5 * (-7)
= 12a^2 - 21a - 20a + 35
= 12a^2 - 41a + 35
Therefore, (3a-5)(4a-7) simplifies to 12a^2 - 41a + 35.