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Diano4ka-milaya [45]
3 years ago
14

I need to know what the variable of x is please explain

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
6 0
I think its x=36 hope this explains it

Kisachek [45]3 years ago
3 0
The answer is: x = 36
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Solve (x + 1)2 – 4(x + 1) + 2 = 0 using substitution.
solniwko [45]

For this case we have to:

Letu = x + 1

So:

u ^ 2-4u + 2 = 0

We have the solution will be given by:

u = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}

Where:

a = 1\\b = -4\\c = 2

Substituting:

u = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (1) (2)}} {2 (1)}\\u = \frac {4 \pm \sqrt {16-8}} {2}\\u = \frac {4 \pm \sqrt {8}} {2}\\u = \frac {4 \pm \sqrt {2 ^ 2 * 2}} {2}\\u = \frac {4 \pm2 \sqrt {2}} {2}

The solutions are:

u_ {1} = \frac {4 + 2 \sqrt {2}} {2} = 2 + \sqrt {2}\\u_ {2} = \frac {4-2 \sqrt {2}} {2} = 2- \sqrt {2}

Returning the change:

2+ \sqrt {2} = x_ {1} +1\\x_ {1} = 1 + \sqrt {2}\\2- \sqrt {2} = x_ {2} +1\\x_ {2} = 1- \sqrt {2}

Answer:

x_ {1} = 1 + \sqrt {2}\\x_ {2} = 1- \sqrt {2}

3 0
2 years ago
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Can you please solve this????
bezimeni [28]

Answer:

thx for the points

Step-by-step explanation:

8 0
2 years ago
Please help please !!!!!!!!!!!
balu736 [363]
8(2)-y=4
16-y=4d
-1y/-1=-12/-1
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(16,12)
3 0
3 years ago
Identify which of these quadrilateral's are parallelograms.
nlexa [21]

Answer:

B

E

F

Opposite Sides equal

Opposite sides parallel

Step-by-step explanation:

5 0
3 years ago
He difference of 29 and n
almond37 [142]

Answer:

28

Step-by-step explanation:

n can be represented as 1.

29 - 1 = 28

Please visit my church's website at fbcinterlaken.org to learn more about God. Please subscribe to the You Tube channel because my church really needs the support right now. Thank you! And have a nice day! :) (I will take brainliest).

3 0
2 years ago
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