The equation x2+(2k−3)x+(k+3)=0x^2 + (2k - 3)x + (k + 3) = 0x2+(2k−3)x+(k+3)=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.