Question 1127170

a) 
{{{(2x^-1) + (4x^-1)/ x}}} if you have this

{{{2(1/x) + (4(1/x))/ x}}} 

{{{2/x + (4/x)/ x}}} 

{{{2/x + 4/(x*x)}}} 

{{{2/x + 4/x^2)}}} 

{{{2x/x^2 + 4/x^2)}}} 

{{{(2x + 4)/x^2)}}} 

{{{2(x + 2)/x^2)}}} 



b)

{{{ (2^(2x)) -1/ (2^x) +1}}}

{{{ 4^x -2^(-x) +1}}}