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mamaluj [8]
3 years ago
8

Subtract 5x−25x−2 ​​from​ −3x+4−3x+4 −8x+6 −8x+2 2x + 2 8x−6

Mathematics
2 answers:
xxMikexx [17]3 years ago
3 0
−3x + 4 - (<span>5x−2)
= </span>−3x + 4  - 5x + 2
= - 8x +6

answer is <span>−8x+6 (first choice)</span>
Aneli [31]3 years ago
3 0

Answer: −8x+6

Step-by-step explanation:

Hi, the numbers are doubled, the correct question is:

  • <em>Subtract 5x−2 ​​from​ −3x+4</em>

So, to answer this we simply have to solve the expression:

-3x+4 - (5x-2)

Applying distributive property for the (-) symbol. (to visualize it, it’s like multiplying by -1 each term in the parenthesis)  

-3x+4 -(5x)-(-2)

-3x +4 -5x +2

Adding alike terms

-5x-3x+4+2

-8x+6

The result is -8x+6

Feel free to ask for more if needed or if you did not understand something.

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Answer:

a)

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a9 = log(9) = log(3²) = 2*log(3) = 2*1.5849 = 3.1699 (I use the property log(a^k) = k*log(a) )

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b) I can take the results of log n we previously computed above to calculate 2^log(n), however the idea of this exercise is to learn about the definition of log_2:

log(x) is the number L such that 2^L = x. Therefore 2^log(n) = n if we take the log in base 2. This means that

a1 = 1

a2 = 2

a3 = 3

a4 = 4

a5 = 5

a6 = 6

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I hope this works for you!!

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