Simplify the expression 3(x2−2x+4)−2(x2−5x+3)3(x^2 - 2x + 4) - 2(x^2 - 5x + 3)3(x2−2x+4)−2(x2−5x+3).
x2+4x+6x^2 + 4x + 6x2+4x+6
x2−16x+6x^2 - 16x + 6x2−16x+6
5x2+4x+185x^2 + 4x + 185x2+4x+18
x2+4x+18x^2 + 4x + 18x2+4x+18