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2 years ago

(x^2 + 5x + 2) – (5x^2 – x – 2) =

Mathematics

2 answers:

lesya692 [45]2 years ago

7 0

Hello!

Answer:

$\boxed{\boxed{\bf THEME:\:EQUATIONS\:\:WITH\:\:PARENTHESIS}}$

$Es\:\:-4x^2+6x+4$

Step-by-step explanation:

$(x^2 + 5x + 2) - (5x^2 - x - 2)$

◈We remove the parentheses:

$x^2+5x+2-5x^2+x+2$

◈We subtract "x²" and "5x²":

$-4x^2+5x+x+2+2$

◈We add up "5x" and "x":

$4x^2+6x+2+2$

◈We add up "2" and "2":

$-4x^2+6x+4$

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Greetings <3

Sincerely: anapaulacbellido

zlopas [31]2 years ago

3 0

Answer:

${ \tt{( {x}^{2} + 5x + 2) - (5 {x}^{2} - x - 2) }} \\ = { \tt{(1 - 5) {x}^{2} + (5 + 1)x + (2 + 2)}} \\ = { \tt{ - 4 {x}^{2} + 6x + 4 }} \\ = { \tt{ - 2(2 {x}^{2} - 3x - 2) }}$

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saveliy_v [14]

First simplify 3x + 12 - 6x to -3x - 12
Next subtract 12 from both sides
Next subtract -9 - 12 and that would be -21
Next divide both sides by -3
Next lets simplify the fraction -21/-3 into 21/3 since those two negatives make a positive.
Lastly simplify the fraction 21/3 to get the answer.

Answer: x ≥ 7

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3 years ago

How do you subtract 42 minutes from 1 hour ,25 minutes.explain what to do and why you do it?

aksik [14]

So 1 hour= 60 minutes
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Now we should subtract the 42
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2 years ago

ariana grande is coming to north gulfport middle school for a fundraising benefit concert!Nevaeh is selling tickets.This week,sh

ArbitrLikvidat [17]

Answer:

Adult = $7

Kids = $4

Step-by-step explanation:

Before we can find the price of the tickets, we first need to create expressions that can be used to explain the prices.

Let x = Price of kids tickets

Let y = Price of adults tickets

For this week the expression is:

3x + 9y = 75

For the last week the expression is:

8x + 5y = 67

Now to be able to find the value of x or y, we can use the Solving Linear Equations by Multiplying First Method.

3x + 9y = 75

8x + 5y = 67

Now we need to remove either the x or y by multiplying the whole expressions by a certain number.

8(3x + 9y = 75)

24x + 72y = 600

3(8x + 5y = 67)

24x + 15y = 201

Now that we have our equations and we can eliminate the x by subtracting both expressions.

24x + 72y = 600

- 24x + 15y = 201

57y = 399

To find the value of y, we divide both sides by 57.

$\dfrac{57y}{57}=\dfrac{399}{57}$

y = 7

Now that we have the value for y, we simply substitute the value in any of our expressions.

3x + 9y = 75

3x + 9(7) = 75

3x + 63 = 75

3x = 75 - 63

3x = 12

Now we divide both sides by 3 to find the value of x.

$\dfrac{3x}{3}=\dfrac{12}{3}$

x = 4

So the ticket prices are:

Adult = $7

Kids = $4

3 0

2 years ago

Which are equal to 3/2?

KIM [24]

Explanation:

Starting with the first option, the square root of 12 and 8 isn’t a perfect square so it definitely can’t be reduced to 3/2.

It is the same for the second option as well.

Third option :
Root of 36 is 6
Root of 16 is 4

6/4 = 3/2

Fourth option:
Root of 81 is 9
Root of 36 is 6

9/6 = 3/2

Answer:

Therefore, the third and fourth options are the correct choices.

Hope this helped!

6 0

2 years ago

What integer values satisfy both inequalities? -1 < x ≤7 x > 3

PIT_PIT [208]

Answer:

4,5,6,7

Step-by-step explanation:

-1 < x ≤7 , x > 3 means that 3 < x ≤ 7

6 0

3 years ago