When does $x^2-4x-1=2k(x-5)$ have equal roots?

Add to your resource collection Remove from your resource collection Add notes to this resource View your notes for this resource

UCLES O level Additional Mathematics 2, QP 420/2, 1966, Q7(ii)

Question reproduced by kind permission of Cambridge Assessment Group Archives. The question remains Copyright University of Cambridge Local Examinations Syndicate (“UCLES”), All rights reserved.