MCQ PracticeIf a 2 + b 2 = 4b + 6a - 13, then what is the value of a + b?Subject: MathematicsTopic: AlgebraA3B2C5D10Correct Answer: CPractice 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