The equation 2x2−5x+(3−k)=02x^2 - 5x + (3 - k) = 02x2−5x+(3−k)=0 where k k\,k is a constant, has no real roots.
Find the set of possible values for kkk.
63 exam-style questions on AQA A Level Maths 1.5.3 Quadratic functions. Each one has a worked solution and a mark scheme showing where the marks go.