Expand and simplify: (x+4)2(x + 4)^2(x+4)2.
x2+16x^2 + 16x2+16
x2+8x+16x^2 + 8x + 16x2+8x+16
x2+4x+16x^2 + 4x + 16x2+4x+16
x2−8x+16x^2 - 8x + 16x2−8x+16