Simplify the product using a table
(–2h + 4)(5h + 7)
5h
7
–2h
4
–10h2 + 34h – 28
–10h2 + 6h + 28
–10h2 – 6h + 28
–10h2 – 34h – 28
(–2h + 4)(5h + 7)
5h
7
–2h
4
–10h2 + 34h – 28
–10h2 + 6h + 28
–10h2 – 6h + 28
–10h2 – 34h – 28