SubArea: Polynomials and fractionsLevel: AProject ID: 2010008804Source Problem: 2010008803Accepted: 0Clonable: 1Easy: 0Simplify: \[rs(2r - s) - \{r^3 - [s^2(r - 3s) - r^2(2s - r)]\}\]\(- 3s^3\)\(3s^3 - 2r^3\)\(3s^3\)\(3s^3 - 2r^3 + 4r^2s\)
