Question 68139
Factor by grouping:
18a^3 - 24a^2b + 15ab^2 - 20b^3  Group the 1st two and 2nd two parenthses.
{{{(18a^3-24a^2b)+(15ab^2-20b^3)}}}  Factor out the GCF from each parentheses.
{{{6a^2(3a-4b)+5b^2(3a-4b)}}}  Factor out the 3a-4b
{{{highlight((6a^2+5b^2)(3a-4b))}}}
Happy Calculating!!!