Question 152817
Let {{{x}}}= non zero integer
So, {{{(x)(-1)=x^2}}} --------------> satisfy the condition
Continuing,
{{{cross(x)(-1)/cross(x)=cross(x^2)x/cross(x)}}}
{{{-1=x}}} ------------------> the non zero integer (it's a neg integer)
Thank you,
Jojo