OCR C1 2005 January — Question 6

Exam BoardOCR
ModuleC1 (Core Mathematics 1)
Year2005
SessionJanuary
TopicQuadratic Functions

6
  1. Calculate the discriminant of \(- 2 x ^ { 2 } + 7 x + 3\) and hence state the number of real roots of the equation \(- 2 x ^ { 2 } + 7 x + 3 = 0\).
  2. The quadratic equation \(2 x ^ { 2 } + ( p + 1 ) x + 8 = 0\) has equal roots. Find the possible values of \(p\).