Question 323683
Just by looking.
You should have two terms : one with an even power of the variable, the other a constant term.
It would look like,
{{{Z^2-A^2}}} but could also look like,
{{{9u^2-3}}} or {{{7y^6-12}}}
You just need to be able to reduce it to a form like,
{{{Z^2-A^2}}}
Just like in the examples,
{{{9u^2-3}}}
{{{Z=3u}}}
{{{A=sqrt(3)}}}
.
.
.
{{{7y^6-12}}}
{{{Z=sqrt(7)y^3}}}
{{{A=sqrt(12)=2sqrt(3)}}}