5. Factorise fully: (a) 6x + 16 (b) x2 – 11x (c) 7x – 21 (d) 18x2 + 30x (e) 20x2 – 60x (f) 5x – x2 (g) 25x – 35 (h) 8 – 2x (i) 15x2 + 27x (j) x2 + x (k ...
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