A parameter and three real roots
A parameter and three real roots
6 marks
TGM Original
Find every real k for which x4-(k+1)x2+k=0 has exactly three distinct real roots, and find those roots.
Solution:
Solution locked
680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs tuition enrolment.
Create a free account to practise similar questions.
Answer:\(k=0\), with roots \(x=-1,0,1\).
Need help? Join our JC Math tuition classes.
Learn more