Complete the multiplication table to determine each product.

6u + 5 and 3u - 4
b. 7u - 6 and 7u - 8

(6u + 5)(3u - 4) = 18u^2 - 24u + 15u - 20 = 18u^2 - 9u - 20

(7u - 6)(7u - 8) = 49u^2 - 56u - 42u + 48 = 49u^2 - 98u + 48