Completely factorise the following polynomial equations and hence solve for x.
(1) 9x^3 + 10x^2 − 17x − 2 = 0
(2) x^3 + x^2 + 2x + 24 = 0
(3) 2x^3 + 3x^2 − 39x − 20 = 0
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similarly find other parts
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