ExamPlay Dark Logo
登入

Mathematics for IGCSE & O level - Algebraic Manipulation (Section 7 - No. 18)

If a = 3, what is the value of 2a^2 - 4?
14
18
12
22

解释

2 * (3)^2 - 4 = 2*9 -4 = 14

评论 (0)

广告