# Past Papers’ Solutions | Edexcel | AS & A level | Mathematics | Core Mathematics 1 (C1-6663/01) | Year 2011 | June | Q#7

Hits: 36 Question where k is a real constant. a. Find the discriminant of f(x) in terms of k. b. Show that the discriminant of f (x) can be expressed in the form (k + a)2 + b, where a and b are integers to be found. c. Show that, for all values of k, […]