MCQ PracticeWhat number must be added to the expression 16a 2 - 12a to make a perfect square ?Subject: MathematicsTopic: SimplificationAfrac94Bfrac112Cfrac132D16Correct Answer: APractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the