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juin [17]
3 years ago
9

I need to know the answer to this question

Mathematics
1 answer:
Dafna11 [192]3 years ago
8 0
KL will be 2x +19 

11 + 2x+19 = x+21

x= -9

KL = 1
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How many extraneous solutions does the equation below have?
FrozenT [24]

<u>Answer</u>

0


<u>Explanation</u>

(2m)/(2m+3)-(2m)/(2m-3)=1

Simplifying the left hand first

(2m)/(2m+3)-(2m)/(2m-3) = {2m(2m-3) - 2m(2m+3)}/(4m²-9)

                                        (4m²-6m-4m²-6m)/(4m²-9)

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Now this equet to 1

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4m²+ 12m -9 =0 ⇒⇒⇒ This is a quadratic equation that has 2 real solutions.

4m²+ 12m -9 =0

m² + 3m + (3/2)²= 9/4 + 9/4

(m + 3/2)² = 18/4

m = √18/2 - 3/2                or m = -√18/2 - 3/2

    = 0.621                                       = -3.621

So we can say that the equation has NO extraneous solutions.

Answer = 0

8 0
3 years ago
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Alex

Answer:

Last option.

Step-by-step explanation:

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3 0
4 years ago
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Answer:

Step-by-step explanation:

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2 years ago
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BARSIC [14]

Answer:

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Step-by-step explanation:

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x 20percent tip

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x   .20

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5 0
3 years ago
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