Mathematics (AS & A Level) · Oct / Nov 2021 · Paper 31 · Question 10
9709
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The question as text
The complex number 1 + 2i is denoted by u. The polynomial 2x3 + ax2 + 4x + b, where a and b are real constants, is denoted by px . It is given that u is a root of the equation px = 0.
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10(a)[4]
10(b)[1]
10(c)[2]
10(d)(i)[4]
10(d)(ii)[1]
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