And then let's see, we're going to have a minus here, so it's minus, you multiply these two guys, 4 times 4 is 16. 16x to the third times x to the third is x to the sixth, over this thing squared, over x to the fourth plus 27 squared. That's just another way to rewrite that expression right there, right? To the minus 2, you can just put it in the denominator and make it to a positive 2 in the denominator. Same thing. Now, if you've seen these problems in the past, we always want to set these things equal to 0. We want to solve for x equals 0, so it'll be useful to have this expressed as just one fraction, instead of the difference or the sum of two fractions.