_ m i a x _ _ r x a _ _ m a _ _ _ _ _ _4 _ 5 _ 7 3 _ _ _ 6 _ _ _ _ _ _ _ _ _ _The last five term of the letter series are
Factorise:
(i) x2 + 6x + 8; (ii) x2 + 4x + 3; (iii) a2 + 5a + 6; (iv) a2 − 5a + 6; (v) a2 − 3a − 40; (vi) x2 − x − 72.