SubArea: Polynomials and fractionsLevel: BProject ID: 9000146202Accepted: 1Clonable: 0Easy: 0Expand the following expression. (a2+3b)3a6+33a4b+9a2b2+33b3a6+3a4b+3a2b2+33b3a5+33a4b+9a2b2+33b3a5+3a4b+3a2b2+33b3