Simplify: (x+3)(x+3)(x + 3)(x + 3)(x+3)(x+3).
x2+9x^2 + 9x2+9
x2+3x+9x^2 + 3x + 9x2+3x+9
x2+6x+9x^2 + 6x + 9x2+6x+9
2x2+6x+92x^2 + 6x + 92x2+6x+9