5 answers

Givi(1)tu4 20 Cr- 0 | - Et 7'0 LlsLte (1*)1317Et<z ( < 2 34 < ( 3A ) 202 |

Question:

Givi(1)tu4 20 Cr- 0 | - Et 7'0 LlsLte (1*) 13 17 Et <z ( < 2 3 4 < ( 3 A ) 20 2 |


Answers

$$\left|\begin{array}{rrrrr} 3 & -2 & 4 & 3 & 1 \\ -1 & 0 & 2 & 1 & 0 \\ 5 & -1 & 0 & 3 & 2 \\ 4 & 7 & -8 & 0 & 0 \\ 1 & 2 & 3 & 0 & 2 \end{array}\right|$$

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Okay. Mhm. Are Divided by three. Are minus 15 minus one over. For our plus 20 Equals three are square plus 17 are plus 40 over 12.

R squared minus 300. Factoring the denominators We're going to factor out of three here and I have ar -5 Factoring out of four here I get our plus five Factoring out a 12 year. Yeah I get r squared minus 25 And that factors into our plus five ar minus five. So my L C. D.

Is going to be 12 R. Plus five ar minus five. Yeah so when I take the first fraction Are over three times ar minus five And multiply that by 12 R plus five ar minus five. We are minus vibes cancelled. Three goes into 12 4 times some left with four.

Our times are plus five minus one. Over four times are plus five times 12 R plus five ar minus five over one Who goes into 12 3 times are plus five. So now I have three AR -5 And the last one the entire denominator cancels. So I have three R squared Plus 17 r plus 40 Distributing the four are I get four r squared plus 20. Are Distributing the three I get -3 are plus 15 equals three R squared Plus 17 r plus 40.

We combine my leg terms four R squared plus 17 are plus 15. So equals three R squared Plus 17 r plus 40. So I'm going to subtract everything on my right side minus three. R squared minus 17 are minus 40. So this cancels this cancels in this cancel so everything now equals zero four R squared minus three hours.

Where it is just R squared 17 ar minus 17 hours. Zero and 15 minus 40 is minus 25. So I have r squared minus 25 equals zero. Factoring R. -25.

I get AR -5. R plus five Equals zero. Which means AR -5 equals zero or are plus five equals zero. So that means either R equals negative positive five For R. equals -5.

But when I put R equals five, okay into my equation so I have one over, let me start here. So when I put five in here I get a dinner three times fine Is 15 minutes 15. My denominator would equal zero and when I put a negative vibe in here I get a zero. So neither of both of those answers produce a zero in the denominator which is undefined. So neither of these zeros work.

I'm sorry. Neither of these answers work. So are um there is no solution for this problem..

So here we are, given a quarter of the question That is 15 x sq -31 x Plus 14 is equal to at 14 is less than zero. So we need to find solution for X. Okay, so using the formula that is minus people saw miners wrote off b squared minus four A C by the way. So using this formula will solve for X. That is this will be equal to negatively.

That is -312 negative will be 31 plus or minus, wrote off Be square. That is 31 square -4 into 15 to 14. That is four and 15 to 14, divided by Two times that is two times 15. That is 30. So this will be equal to 30 plus or minus square root talk one, developed by 30 and we know that square root of underneath one is plus or minus means 11.

I mean this is already there, therefore 30 plus or -11 by 30. I mean 31 Does this 31 of they're very little bit 31 plus or -11 by 30, which is equal to 31 plus 11. That is 42 x 30 and 31 -11. That is 20 by 30 which is equal to seven x 5. Coma fall by For basics, that is two x 3.

Therefore X belongs to well, we can protect us ex slice between to buy three and don't be afraid..

Proud. 89. We have one. It's less than absolute value. Tu minus three x.

I want to rewrite this and the standard for warm someone here. Absolute value of two minus three X is writer then one. Consider yet one is less than one. That's less than now. This is a great war.

So it's, um Or so we were at the 1st 1 Or it is gonna be less than the opposite now in a subtract two from all parts. Where did that picks come from? Where'd you come from? Go away. Go in. There it goes. What extracts? What are you talking about? I don't see it.

Nothing else. You have to pay attention because you know you don't know what's going on sometimes. So negative three X is greater than negative one or negative. Three X is less than negative three. Now I want to give her that negative three.

So the divide All three parts by a negative three. So head tax is less than 1/3 because we flipped in. Quality X is greater thin. One ther so X is less than 1/3 or greater than that one. They're greater than one on the speak.

Yeah, greater than.

I want to put one of these three. Symbol was between these two sides to be true. Something to evaluate both sides on this side. The absolute value of minus two is to upset values, just positive. That's what's in here.

Besides, if I replace for over 17 with X, for example, I get X divided by X, which is inevitably going to be one and two is great one. So this symbol here, like so..

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