Write 3x2−9x+23x^2 - 9x + 23x2−9x+2 in the form 3(x2+px)+23(x^2 + px) + 23(x2+px)+2, giving the value of ppp.
Express 3x2−9x+23x^2 - 9x + 23x2−9x+2 in the form a(x+b)2+ca(x + b)^2 + ca(x+b)2+c
State the coordinates of the minimum point of the curve y=3x2−9x+2y = 3x^2 - 9x + 2y=3x2−9x+2
State the equation of the normal to the curve y=3x2−9x+2y = 3x^2 - 9x + 2y=3x2−9x+2 at its minimum point.
322 exam-style questions on Edexcel A Level Maths Quadratics, covering 2.1 Solving Quadratics, 2.2 Completing the Square, 2.3 Sketching Quadratic Graphs, 2.4 The Discriminant, and 2.5 Modelling with Quadratics. Each one has a worked solution and a mark scheme showing where the marks go.