Simplify the product using the distributive property.

(4h-5)(5h-3)

To simplify the product (4h-5)(5h-3) using the distributive property, we need to multiply each term in the first parenthesis by each term in the second parenthesis and then combine like terms.

(4h-5)(5h-3)
= 4h * 5h + 4h * -3 - 5 * 5h - 5 * -3
= 20h^2 - 12h - 25h + 15
= 20h^2 - 37h + 15

Therefore, the simplified product using the distributive property is 20h^2 - 37h + 15.