Factorise the expressions and divide them as directed.
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
(i)
(ii)
(iii)
(iv)
(v)
[using identity a2 - b2 = (a + b) (a - b)]
(vi)
[using identity a2 - b2 = (a + b) (a - b)]
(vii)
[using identity a2 - b2 = (a + b) (a - b)]