Skip to content

Course home

Quadratics

Quadratics

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129
Question 90
a.

Express x2+kx+3x^2 + kx + 3x2+kx+3 in the form (x+a)2+b(x + a)^2 + b(x+a)2+b, in terms of kkk.

[2]
b.

State the coordinates of the minimum point of the curve y=x2+kx+3y = x^2 + kx + 3y=x2+kx+3, in terms of kkk.

[2]
Markscheme

Quadratics Questions

  1. A Level
  2. /Maths
  3. /Quadratics

211 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.

Question bank