Simplify each of the following and express the result as a rational number in standard from:
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
(viii)
(i) *
=
(ii) *
(iii) * 16
(iv) *
(v) *
(vi) *
(vii) *
(viii) *