Simplify 
and find its values for
(i) 
(ii) 
(i) Substituting x = 3 in the expression 
(ii) Substituting x = 1/2 in the expression 
12
Simplify and find its values for
(i)
(ii)
(i) Substituting x = 3 in the expression
(ii) Substituting x = 1/2 in the expression