## College Algebra (11th Edition)

28$r^{2}$ + r - 2
1. FOIL (4r - 1)(7r + 2) = 4r(7r) + 4r(2) - 1(7r) - 1(2) 2. Multiply 28$r^{2}$ + 8r - 7r - 2 3. Add like terms. 28$r^{2}$ + r - 2