Simplify: 3x2−126x\dfrac{3x^2 - 12}{6x}6x3x2−12 for x≠0x \neq 0x=0.
x2−42x\dfrac{x^2 - 4}{2x}2xx2−4
x−42\dfrac{x-4}{2}2x−4
3(x2−4)6\dfrac{3(x^2-4)}{6}63(x2−4)
x−22\dfrac{x-2}{2}2x−2