Multiply: fracx2−16x2+8x+16cdotfracx+4x−4\\frac{x^2 - 16}{x^2 + 8x + 16} \\cdot \\frac{x + 4}{x - 4}fracx2−16x2+8x+16cdotfracx+4x−4 (assume xneq4,−4x \\neq 4, -4xneq4,−4).
111
x+4x + 4x+4
fracx+4x−4\\frac{x+4}{x-4}fracx+4x−4
x−4x - 4x−4