Simplify: 3x(x2+2x−1)+2x2(x−3)3x(x^2 + 2x - 1) + 2x^2(x - 3)3x(x2+2x−1)+2x2(x−3).
5x3−3x−3x5x^3 - 3x - 3x5x3−3x−3x
5x3+6x2−3x5x^3 + 6x^2 - 3x5x3+6x2−3x
5x3−3x5x^3 - 3x5x3−3x
5x3+6x2+3x5x^3 + 6x^2 + 3x5x3+6x2+3x