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stich3 [128]
4 years ago
11

Simplify the expression

Mathematics
1 answer:
Pachacha [2.7K]4 years ago
8 0

Answer:

Option B: 2x^2 +9x - 2/ 8x^3 +4x^2 -2x -1

Step-by-step explanation:

Given that:

=(3/4x^2 + 4x +1) + (x+1/ 4x^2 - 1)

By simplifying and factorizing we get:

= (3/ 4x^2 + 2x + 2x +1) + (x+1/ (2x^2)-(1)^2)\\= (3/ 2x(2x+1)+1(2x + 1)) + (x+1/(2x+1)(2x - 1))\\= (3/(2x + 1)^2) + (x+1/ (2x+1)(2x -1))

By taking LCM we get:

=(3(2x-1)+ (x+1)(2x + 1))/((2x+ 1)^2 (2x-1))\\= 6x -3 + 2x^2 + x + 2x +1/ 8x^3 +4x^2 -2x -1\\= 2x^2 +9x -2/8x^3 +4x -2x -1

I hope it will help you!

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Christina paid $2 for 5/8 of a gallon of gas.How much does it cost per gallon​
vladimir1956 [14]

Answer:

$3.20

Step-by-step explanation:

I divided the $2 by 8 to see how much 1/8 a gallon cost.

I got 0.40

Multiple this by 8 to get 8/8 or 1 gallon.

You get 3.2

so $3.20

Hope this helped. :)

5 0
3 years ago
Please heeelp !! <br> Missing triangles !!
Airida [17]

Answer: ABC seem to be equilateral

so A=B=C=60

D=42

E=35

F=35

G=55

H=45

I=45

j=15

k=15

L=75

M=180

N=11

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Q=55

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Step-by-step explanation:

6 0
4 years ago
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Wiil mark bianleast plz plz hlpe
Andrews [41]

Answer:

18 since 12 x 2 = 24 so 9 x 2 = 18

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20-%205%20%7C2x%20%2B%202%7C%20%2B%207%20%5Cgeqslant%20%20-%203" id="TexFormula1" title=" - 5
blagie [28]

Answer:

The inequality that comes from this equation is -2 < x < 0

Step-by-step explanation:

In order to solve this equation, we need to start by solving for the absolute value portion of the equation.

-5l2x + 2l + 7 > -3

-5l2x + 2l > -10

l2x + 2l < 2

Now we need to split the equation into two different portions. One with the absolute value symbol taken away. Then we do it again with the symbol flipped and the answer negated.

2x + 2 < 2

2x < 0

x < 0

And the negated version.

2x + 2 > -2

2x > -4

x > -2

5 0
4 years ago
Karen is working on her math homework. She solves the equation
Gelneren [198K]
Disagree.
b/8 = 56; multiply both sides by 8 to solve for b, and you get b = 448
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3 years ago
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