Question 139779

{{{(2a+3b)(3a-3b)}}}......multiply binomials

{{{2a*3a -2a*3b + 3b*3a -3b*3b}}}

{{{6a^2 -6ab + 9ba -9b^2}}}

{{{6a^2 + 3ba -9b^2}}}........divide all terms by {{{3}}} (simplify)

{{{2a^2 + ba - 3b^2}}}