Question 158078
Try this!
{{{highlight((a-2b))(a+3b)(b-a)-(4a+5b)(a-b)highlight((a-2b))}}} Factor the indicated factors from both terms.
{{{(a-2b)((a+3b)(b-a)-(4a+5b)(a-b))}}} Now, {{{(a-b) = -(b-a)}}} so make the substitution in the second term.
{{{(a-2b)((a+3b)highlight((b-a))-(4a+5b)((-highlight((b-a)))))}}} Factor the indicated factors from both terms and change the - to +
{{{(b-a)(a-2b)(highlight((a+3b)+(4a+5b)))}}} Perfom the indicated addition.
{{{highlight((b-a)(a-2b)(5a+8b))}}}