The given equation of the plane
2x–3y + 6z + 14 = 0
2x–3y + 6z = – 14 ……(i)
Now,
\(\sqrt{2^2+(-3)^2+(-6)^2}\)
= \(\sqrt{4+9+36}\)
= \(\sqrt{49}\) = 7
Dividing (i) by 7, we get

Multiplying both sides by – 1, we get

This is the normal form of the given equation of the plane.