Question 111911
{{{3x^4 + 6x^3 + 5x^3 + 10x^2}}}………factor out common {{{x^2}}}

{{{x^2(3x^2 + 6x + 5x + 10)}}}……… group the first and third term together and the second and fourth term together like this

{{{x^2((3x^2 +  5x) +  (6x + 10))}}}……… factor a {{{1x }}}out of the first group and factor a{{{ 2}}} out of the second group.

{{{x^2(x(3x + 5) + 2(3x + 5))}}}……… we have a common term {{{(3x + 5)}}}and we can combine the two terms

{{{x^2(3x + 5)(x  + 2)}}}………