Pearson Edexcel Level 3 GCE Further Mathematics Advanced PAPER 1: Core Pure Mathematics 1
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Nov 3, 2025
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Pearson Edexcel Level 3 GCE Further Mathematics Advanced PAPER 1: Core Pure Mathematics 1
f(z) = z3
+ az + 52 where a is a real constant
Given that 2 – 3i is a root of the equation f(z) = 0
(a) write down the other complex root.
(1)
(b) Hence
(i) solve completely f(z) = 0
(ii) determine the value of a
(4)
(c) Show all the roots of the equation f(z) = 0 on a single Argand diagram.