### Home > A2C > Chapter 11 > Lesson 11.3.3 > Problem11-155

11-155.

Explain why it is useful to make $C = 0$in the general quadratic relation $Ax^{2} + By^{2} + Cxy + Dx + Ey + F = 0$.  “

Suppose $C ≠ 0.$
What effect does this have on the process of factoring or manipulating this relation to look like the equation for a conic section?