Question 13445
Factor:

{{{3(5-x)^4 + 2(5-x)^3 - (5-x)2}}} Factor GFC {{{(5-x)^2}}}
{{{(5-x)^2(3(5-x)^2 + 2(5-x) - 1)}}} = {{{(5-x)^2((5-x)(3(5-x) + 2) - 1)}}}