Multiple choice What is (u + 12) (u - 12) in expanded form? u2 + 144 u2 - 24 + 144 u2 - 144 u2 + 24 + 144 Reveal answer Fill a bubble to check yourself C Correct answer Explanation (u + 12) (u - 12) = u2 - 12u + 12u - 144 (Using Foil) = u2 - 144