Question 641517
{{{36r^2-5r-24}}}....replace {{{-5r}}} with {{{-32r+27r}}}

{{{36r^2-32r+27r-24}}}

{{{(36r^2-32r)+(27r-24)}}}

{{{4r(9r-8)+3(9r-8)}}}

{{{(4r+3)(9r-8)}}}