Question 622560
Starting with:
{{{9w-w^3}}}
factor out what is common between both terms (w):
{{{w(9-w^2)}}}
notice, we can rewrite the expression inside the parentheses as:
{{{w(3^2-w^2)}}}
now, since it's a "difference of squares" it factors to:
{{{w(3-w)(3+w)}}}