If you would like to simplify the product using the distributive property, you can do this using the following steps:
(5h – 5) (5h – 6) = 5h 5h - 5h 6 - 5 5h + 5 * 6 = 25h^2 - 30h - 25h + 30 = 25h^2 - 55h + 30
The correct result would be a. 25h^2 – 55h + 30.
