 We came up with our problem. We want it to be 2 square root of 5 minus 3D square cubed root of A squared, right? So that's our first level. Please remember your level. So that's our first level, right? So what we're going to do is take this number and expand it one more level lower. So basically take it to a level where number 2 appears like we talked about before. You can write number 4 as 5 minus 1, right? So what we're going to do is break this down, take this thing, take this term, and turn it into two terms. So we're going to take, you can get the number 2 from going 5 minus 3, right? So we have 2 square root of 5 or 2 boxes, 2 whatever, 2 of anything. So we're going to go 5, 5 square root of 5 minus 3 square root 5, okay? So 5 minus 3 is going to give us 2. So our first term we just broken into or took it to one level higher, right? Now we're going to deal with this. Now whenever you have a minus between two terms, this minus sign applies to everything after the term. If it's one term, if it's a bracket there, it applies to everything after it, right? If you've got another term here, if it's a plus or minus, this won't apply unless there's a bracket there. But since we started off with one term with a minus in front, and we're going to expand this into two terms, we're going to have to put a bracket after this negative sign. So what we're going to do is go minus square, sorry, minus bracket. Now we've got 3a square cube root of a square, right? How are we going to write the number 3? So we've got 3a square, let's make that into a square, a square cube root of a square plus. So we already got, there's 3a square here, 3 of these guys basically, these are variables, letters, right? So we've got 3 of these guys, we already got one of them. When there's no number in front of a letter, it implies there's a 1 there, right? So we need 2 more, we've got 3, so we need 2 more. 2a square cube root of a square, and then you can close your bracket. So we just took the answer, oops, we just took the answer and made ourselves a problem. Now what they would do in an exam or if your teachers give you a question is, you know, this could be a legitimate question, so take this off, right? And this would be, you know, solve this or simplify this, it wouldn't be solved because there's no equal sign in the question, right? They would just say simplify this and all you would do is combine like terms. So if they give you a question, let's say this was your question, go on, because really this is our simplest, you know, one of our simplest questions you could get. As long as, you know, you don't have to do the little questions, right? Combining like terms and stuff like this. So 5, 5 square root of 5 minus 2 square root of 5, 5 minus 3 would be 2, so you get that. So if you were going the other way around, if you're solving for this, it would go 2 square root of 5, and then you have a square cube root of a square plus 2a square cube root of a square, and that would be 3, right? So it would be minus bracket 3a square cube root of a square. So what I'm going to do is close our bracket and since you only have one term, you don't need the brackets anymore, so you just kill the bracket. So every time we expand it to one level, we go one level complicated, complicated, what we'll do is just we'll solve it again to go back to the original level, okay? So we just got this. Now we've got to remember this. Go to another wall and take this thing and expand it one more level, okay?