Skip to content

Course home

Sign up

Quadratics

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132
Question 31

The equation (k+9)x2+0x+(k+4)=0(k + 9)x^2 + 0x + (k + 4) = 0(k+9)x2+0x+(k+4)=0, where k k\,k is a constant has two distinct real solutions for xxx.

Find the set of possible values for kkk.

[6]
Markscheme

Quadratics Questions

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

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.

Question bank