Question 46486
{{{45z^6 + 48z^4 + 12z^2}}}
{{{3z^2(15z^4 + 16z^2 + 4)}}}
{{{3z^2(15z^4 + 10z^2 + 6z^2 + 4)}}}
{{{3z^2((15z^4 + 10z^2) + (6z^2 + 4))}}}
{{{3z^2(5z^2(3z^2 + 2) + 2(3z^2 + 2))}}}
{{{3z^2(5z^2 + 2)(3z^2 + 2)}}}