Question 947655
The difference quotient needs to be this format:
{{{(f(x+h)-f(x))/h}}}


{{{f(x+h)=(x+h)^(1/4)}}}
and
{{{f(x)=x^(1/4)}}}


Forming the difference quotient:
{{{((x+h)^(1/4)-x^(1/4))/h}}}


{{{(((x+h)^(1/2)+x^(1/2))((x+h)^(1/2)-x^(1/2)))/h}}}
and from here, there is an algebraic trick taught in College Algebra during the study of limits, but unsure about how to work with it at this moment.  Maybe you can review that and finish.  I leave this unfinished posting up anyhow.