Simplify: x4−16x2+4x+4÷x2−4x+2\frac{x^4 - 16}{x^2 + 4x + 4} \div \frac{x^2 - 4}{x + 2}x2+4x+4x4−16÷x+2x2−4
x−2x - 2x−2
x2−4x^2 - 4x2−4
x2+41\frac{x^2 + 4}{1}1x2+4
(x−2)(x2+4)x+2\frac{(x-2)(x^2+4)}{x+2}x+2(x−2)(x2+4)