Divide x2−4x÷x+2x2\dfrac{x^2-4}{x} \div \dfrac{x+2}{x^2}xx2−4÷x2x+2.
x(x−2)x(x-2)x(x−2)
x2(x−2)x^2(x-2)x2(x−2)
x−2x\dfrac{x-2}{x}xx−2
x+2x + 2x+2