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nydimaria [60]
3 years ago
7

(3x² - 4x+8) + (-7² - 27-8)

Mathematics
1 answer:
iragen [17]3 years ago
4 0

Answer:

3x^ - 4x - 76

Step-by-step explanation:

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3x squared - 5x -7=0
Papessa [141]

The value of x is x=2.57338 and x=−0.906718

<h3>What is equation?</h3>

An equation is a mathematical expression that contains an equals symbol. Equations often contain algebra.

Given:

3x²-5x-7=0

Using the discriminant method,

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x= -b± √b²-4ac / 2a

x= 5 ± √25 + 84/ 6

x= 5± √ 109

Hence, x=2.57338 and x=−0.906718

Learn more about this concept here:

brainly.com/question/24727211

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Anna35 [415]
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7 0
3 years ago
Mr. Hobbs has 10 blue markers, 6 black markers, and 8 red markers
Zolol [24]

Answer:

4

Step-by-step explanation:

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8 0
3 years ago
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irinina [24]

Answer:

a. 36

b. 8.5 (8 1/2)

c. 2/5

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e. 9

f. 8

Step-by-step explanation:

a. 36

b. 8.5 (8 1/2)

c. 2/5

d. 6

e. 9

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7 0
3 years ago
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