OCR MEI C1 2006 January — Question 9

Exam BoardOCR MEI
ModuleC1 (Core Mathematics 1)
Year2006
SessionJanuary
TopicQuadratic Functions

9
  1. Find the range of values of \(k\) for which the equation \(x ^ { 2 } + 5 x + k = 0\) has one or more real roots.
  2. Solve the equation \(4 x ^ { 2 } + 20 x + 25 = 0\).