A-Level
EDEXCEL
Mathematics & Further Mathematics
October 2016
QP-201610-Mathematics-C12 · Question 11
Question (excerpt):
30 11. The equation 5x2 + 6 = k(13x2 – 12x), where k is a constant, has two distinct real roots. (a) Show that k satisfies the inequality 6k2 + 13k – 5 > 0 (4) (b) Find the set of possible values for …
30 11. The equation 5x2 + 6 = k(13x2 – 12x), where k is a constant, has two distinct real roots. (a) Show that k satisfies the inequality 6k2 + 13k – 5 > 0 (4) (b) Find the set of possible values for …
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