Given that the equation kx2+12x+k=0kx^2 + 12x + k = 0kx2+12x+k=0, where k k\,k is a positive constant, has equal roots,
find the value of kkk.
Practise Edexcel A Level Old Maths Algebra and Functions 1 with exam-style questions for A Level Old Maths. 19 questions, matched to the Edexcel A Level Old Maths (9371) specification and written in Unit exams C1, C2, C3 and C4 plus two applied units (e.g. S1 and M1) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.