Consider the polynomial 8x3−50x. Answer the questions that follow.
(i) Identify the greatest common factor (GCF) of the terms of the polynomial and write the expression obtained after taking it out.
(ii) Factorise the resulting expression obtained in part (i) completely.
(iii) Hence, write the fully factorised form of 8x3−50x and verify your result by multiplying the factors obtained.