Question 17678
The first step is to rationalize the first denominator by multiplying numerator and denominator of the first fraction by {{{sqrt(x)}}}:  


{{{1/sqrt(x) + 2/x }}}
{{{(1/sqrt(x)) * ((sqrt(x))/(sqrt(x))) + 2/x }}}

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


Notice the common denominator!!
{{{(sqrt(x) + 2)/x}}}


R^2 at SCC