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16 8 I3 0f ordei 2*3 and BA IS brder 3ys, then A Is 0f Ihe older308 0 32 0 4 0 2x4 00~AjJr...

Question

16 8 I3 0f ordei 2*3 and BA IS brder 3ys, then A Is 0f Ihe older308 0 32 0 4 0 2x4 00~AjJr

16 8 I3 0f ordei 2*3 and BA IS brder 3ys, then A Is 0f Ihe older 308 0 32 0 4 0 2x4 0 0~AjJr



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The oxidarion srare of xenon arom in $\mathrm{X} \mathrm{c} \mathrm{F}_{s}$, $\mathrm{HX}_{\mathrm{c} \mathrm{O}}_{4}, \mathrm{Na}_{4} \mathrm{X} \mathrm{cO}_{6}$ are, rcspecrively (a) $+i,+6,+8$ (b) $+1,+6,+6$ (c) $+1,+6,+7$ (d) $+1,+5,+8$

Okay, Given 28 Q plus 38 37 a squared plus eight. Ah, too fast with this, the first thing we need to do is take out our GC yet and I don't know, quite rights. Right? There should be a A Here is. Well, there we go. Okay. So the thing that all these have in common is that a that I just added Rhinos identity Incorrect. So I'm gonna factor in a out of each one of these terms. Ah, same thing is dividing its term by a what that's gonna do. It's gonna leave me with a 20 a squared plus a 37 a plus. Okay, now this a often gets for gotten, so we're gonna go ahead and drag it down here. So when we write our final answer, we have it there. Our focus is gonna be a bonus. Quadratic. Now, finally, factor of our quadratic. We're going to divide our middle term into two terms, so we'll take 20 times eight, which will give us 1 60 and then we'll put 37 on the bottom. We're looking for two numbers to multiply to get 1 60 combined to get 37 when you have big numbers like this, one trick I like to do is I go to my graph. And Michael, I didn't do it for you, so you can see it. Um, go to a graph and you type in your number on top of 1 60 then divide it by X. This will get you all the factors. And you don't really care about the Graff. You want to just go ahead and go to the table and then look down for your table. We're looking for 37. So wanted 1 60 No, to 80. No, 4 40 How about five and 30 cept there? Five and 30 suits by post 32 gives me that 37. So this is a quick way for you to find the factors. So we got five and 32. We're gonna replace our 37 a with those. So that means I got 20 a squared plus five a plus 32 A plus eight. Now I'm ready to do my grouping, so I'm gonna group my 1st 2 terms and the great my last two terms. Look for what the 1st 2 terms have in common, which is in a And if I so we'll divide these term by five a. Leaving me with four A plus one. The last two terms both haven't ate and we're gonna keep this plus sign right here. So plus eight, which would leave me with four A plus one. So the factors within our parentheses will be one of our factors. It's why they have to be the same. If they're not the same, you need to go back and re check your work. The other factor will be five a plus eight. So a times for a plus one times +58 plus eight will give you 28 q plus 37 8 square left a day.

I only have a matrix A. As the Matrix 0 -27 five four, negative three. And be the matrons 840 zero 14 Now first thing we want to find here is a plus B. Finding a Polsby just means add the parts that go together. So I had the top left with the top left, the middle with the middle, the top right with the top right. And then so on zero plus eight gives us eight. They have two was forced to 707 On the bottom 505 four Plus 1 is five. Three plus four is one. So that's our major. It's A plus B. No a minus B is very similar. So if we subtract instead So in the top left, zero mindset is -8. They have to -4 is negative soups 7 -07. On the bottom 5 0 is five. 4 -1 is three. And I give 3 -4. There's negative stuff not for the matrix to A. That just means take every component in a multiplied by two. Mhm. And so this becomes zero. Now you're four 14 10, eight -6. That's our matrix to a. We have three. B is very similar to just take everything and be multiply it by -3. So it's 1924. May have 12 zero zero nee of three. No, you have 12.

This problem, we are dealing with the Matrix A 11 A 12 A 13 A 14 What? So yeah. And we're wanting to deal with the determinant of this matrix now this is what is called an upper train. Your Matrix hold up. We're trying because zero's everywhere in the bottom. The only actual values that are up top and we want to deal with the determinant and find the determinant of this. Let's tee it off, let's take it off Right here, you'll see it off right there. Now turn it off right here means this is going to be equal to a 11 times negative one to the second times the determinant of what's left over. I'm sorry, script one there right there. Meet a 33 Yeah, yeah, I should have that in there. That's my fault. So now we're left with this negative one swears. Just once, we're not gonna need that part there was that mark and just go away. Mhm. And then now we have a three by three determinant to find. And so let's tee it off, let's tee it off right here. Yeah, because we've got zeros everywhere besides that top. And so it means this is just a 11 times a 22 times negative one squared times the determinant of what's left. Once again I give once was just one. Mhm. And so we have a 11 times a 22 times now here we can find this determinant and that is just a 33 times a 44 Since all we found the determinant to be this just like we wanted.

Given expression is eight a square B. Bliss 30 full A. B minus 84 b No. We will find out the greatest common factor off given to a normal hill. Toby is the greatest common factor off given to a normal when we factor out Toby from 88 square be plays 34 a B minus 84 b four a square less 17 e minus 42 will remind. Now we have to find out, though Factors off full is great place 17 a minus 42. Now we will rewrite middle term 17 a. Us by using factors off minus 68 Hill minus 68. Factors are We will take minus 24 and plus seven. Now we will rewrite them until Tom to be multiplied by four a square minus 78 Place 24 a minus 42. Now we will rewrite, though Tom's rearrange the terms to be multiplied by four a square less 24 e minus 78 minus 42. When we rearrange the terms, it is easy toe make groups with common factors. Now we will group their terms with common factors to be multiplied by four a square less. 24 8 minus 78 Place 42. No factor, though common factors from group returns to be multiplied by when we factor out. Four. A from first group The term for a square place 24 a e Place six Will remind when we factor out seven. From second term 78 plus 42 we will have a place six Hell a place six is, though common factor in both the terms so we can factored a place six to be multiplied by when we factored a place six from Buddha Terms 40 is there in first, um, minus seven is the in second term. So 40 year minus seven. So factors are to be multiplied by a place six multiplied by 48 minus seven.


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