Mathematics - 3D Coordinate Geometry Question with Solution | TestHub

The given equation is $x^2-8x+12=0$.

Factorizing the quadratic equation, we get:

$(x-6)(x-2)=0$

$x=6$ or $x=2$

In 3-dimensional space, an equation of the form $x=k$ (where $k$ is a constant) represents a plane parallel to the YZ-plane.

Thus, $x=6$ and $x=2$ represent two planes parallel to the YZ-plane.

Answer: 2 planes parallel to YZ-plane