0606 P22 - Jun 2019 - Q3 - 6 marks
8299
(i) Given that \(x-2\) is a factor of \(ax^3-12x^2+5x+6\), use the factor theorem to show that \(a=4\).
(ii) Factorise \(4x^3-12x^2+5x+6\) and hence solve \(4x^3-12x^2+5x+6=0\).
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