MCQ PracticeIf 2x 2 + y 2 + 6x - 2xy + 9 = 0, then the value of (4x 3 - y 3 + x 2 y 2 ) is:Subject: MathematicsTopic: AlgebraA0B9C-3D-9Correct 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