(i)[5]
Apply the factor theorem to demonstrate that $(x + 2)$ is a factor of $6x^3 + 13x^2 - 33x - 70$, then factorise the expression fully.
(ii)[2]
Work out the roots of the equation $6 + 13y - 33y^2 - 70y^3 = 0$.
Mathematics 9709 · AS & A Level · Algebra