A-Level
EDEXCEL
Mathematics & Further Mathematics
January 2019
QP-201901-Mathematics-C12 · Question 13
Question (excerpt):
32 13. f (x) = 3x3 + 3x2 + cx + 12, where c is a constant Given that (x + 3) is a factor of f (x), (a) show that c = í14 (2) (b) Write f (x) in the form f (x) = (x + 3) Q(x) where Q(x) is a quadratic …
32 13. f (x) = 3x3 + 3x2 + cx + 12, where c is a constant Given that (x + 3) is a factor of f (x), (a) show that c = í14 (2) (b) Write f (x) in the form f (x) = (x + 3) Q(x) where Q(x) is a quadratic …
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