Let's solve for whether this is equal to 0, and I'll do it in the same color. So 12x to the 3rd minus 12x squared is equal to 0. And so let's see what we can do, what can we do to solve this. Well we could factor out a 12x. So if we factor out a 12x, then this term becomes just x, and then actually let's factor out a 12x squared. We factor out a 12x squared, if we divide both of these by 12x squared, this term just becomes an x, and then minus 12x squared divided by 12x squared is just 1, is equal to 0. I just rewrote this top thing like this.