22(a)Expanding FactorisingMedium3 marksExpand and simplify (x+5)(x−3)2.Expanded expressionGrade answerGrading criteria
22(b)Polynomial Functions GraphsMedium4 marksOn the diagram, sketch the graph of y=(x+5)(x−3)2, indicating the values where the graph crosses the axes.PenEraserUndoRedoClearDraw with the mouse or a finger.Grade answerGrading criteria