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ikadub [295]
2 years ago
10

What is the value of (x+1) in 13(6x − 5) − x = 13 − 2(x + 1)

Mathematics
1 answer:
yKpoI14uk [10]2 years ago
5 0
The answer is -2x+11 for sure is the answer
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show that thw roots of the equation (x-a)(x_b)=k^2 are always real if a,b and k are real. Please I really need help with this
VLD [36.1K]

Answer:

see explanation

Step-by-step explanation:

Check the value of the discriminant

Δ = b² - 4ac

• If b² - 4ac > 0 then roots are real

• If b² - 4ac = 0 roots are real and equal

• If b² - 4ac < 0 then roots are not real

given (x - a)(x - b) = k² ( expand factors )

x² - bx - ax - k² = 0 ( in standard form )

x² + x(- a - b) - k² = 0

with a = 1, b = (- a - b), c = -k²

b² - 4ac = (- a - b)² + 4k²

For a, b, k ∈ R then (- a - b)² ≥ 0 and 4k² ≥ 0

Hence roots of the equation are always real for a, b, k ∈ R


           

8 0
3 years ago
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Roman55 [17]
I hoped this helped or something

5 0
2 years ago
3x2 – 7x 7x = 4x – 8​
ratelena [41]

Answer:

x =−1−√93/23,−1+√93/23

Step-by-step explanation:

x=0.37581090…,−0.46276742...

5 0
2 years ago
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List the following fractions from least to greatest
jonny [76]

Answer:

It would be number 3. 1/7,3/7,4/7,6/7

Step-by-step explanation:

For fractions if the denominator is the same you go to the numerator (the top number) to compare. The bigger the numerator is (like 6) the higher it should go on your list.

7 0
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Answer:

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Step-by-step explanation:

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14x14x14x14= 38,416

2,744x38,416= 105,413,504

4 0
3 years ago
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