[Question deleted. OG is a banned source; it is illegal to post OG questions on the web. Please read (and follow!) the forum guidelines.]

The correct answer is D, either statement alone is sufficient.

However, I thought you couldn't divide both sides of an equation by "x" if one side is "x^2" because of the fact that x might be a negative number?

Or does that not apply to this situation?

Thanks!
Mike

[question deleted; see above]

It does not apply here.

if the case is like, x^2yz > 12xy, then the inequality might change based on the sign. You cannot divide.

But, here
x^2yz= 12xy is an equation. You can divide by common factor xy.

Hence D.

Thanks

Thanks Sudhan!

That's right! It's only matter with inequalities because the inequality sign would reverse if you were dividing by a negative x, but it would stay the same if it were a positive x.

mdh

Hi, guys - please remember to follow the forum guidelines. It is illegal to post OG questions anywhere on the web. I know lots of sites don't follow the rules but we do. :)

If you are in a class, ask OG questions during office hours or before or after your class.