Simplify: (x2−4x+1)+(2x2+4x−5)(x^2 - 4x + 1) + (2x^2 + 4x - 5)(x2−4x+1)+(2x2+4x−5).
3x2−43x^2 - 43x2−4
3x2+8x−43x^2 + 8x - 43x2+8x−4
3x2−63x^2 - 63x2−6
x2−4x^2 - 4x2−4