Question 1208437
<pre>
{{{matrix(2,1,"",
x^(2/3)*x^(1/2)*x^(-1/4))}}}

Add exponents to multiply powers {{{2/3+1/2-1/4}}}

Get least common denominator of 12

{{{8/12+6/12-3/12}}}{{{""=""}}}{{{(8+6-3)/12}}}{{{""=""}}}{{{11/12}}}

{{{matrix(2,1,"",x^(11/12))}}}  <--answer

-----------------------

{{{((x^4)(y^8)^"")^(3/4)}}}

Multiply exponents to raise powers to powers:  {{{4*expr(3/4)=3}}}, {{{8*expr(3/4)=6}}}

{{{x^3*y^6}}}  <--answer

Edwin</pre>