Question 33540
{{{ y^4x+y^5x^3-x^2+yx^5 }}}
Look at JUST the x values.  the first has an understood value of 1
{{{ y^4x^1+y^5x^3-x^2+yx^5 }}}
If in Ascending order .... put x^1 first, then x^2, then x^3 ...
If in decending order .... put x^1 last etc
Keep the + - with the number that they are in front of
{{{ y^4x^1-x^2+y^5x^3+yx^5 }}}