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Art [367]
3 years ago
10

Who can finish this for me

Mathematics
1 answer:
Paladinen [302]3 years ago
8 0

Answer:

<h2>-  {x}^{4}  - 7 {x}^{3}  + 8</h2>

Step-by-step explanation:

(5 - 5 {x}^{4}  -  {x}^{3} ) - (6 {x}^{3}  - 4 {x}^{4}  - 3)

Remove unnecessary parentheses

5 - 5 {x}^{4}  -  {x}^{3}  - (6 {x}^{3}  - 4 {x}^{4}  - 3)

When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression

5 - 5 {x}^{4}  -  {x}^{3}  - 6 {x}^{3}  + 4 {x}^{4}  + 3

Collect like terms

5 + 3 - 5 {x}^{4}  + 4 {x}^{4}  -  {x}^{3}  - 6 {x}^{3}

5 + 3 -  {x}^{4}  - 7 {x}^{3}

Add the numbers

8 -  {x}^{4}  - 7 {x}^{3}

Use the commutative property to reorder the terms

-  {x}^{4}  - 7 {x}^{3}  + 8

Hope this helps...

Best regards!!

You might be interested in
A truck traveled a distance of 280 kilometers in 4 hrs.
erica [24]
In this question, it is necessary to first check all the details that are already provided in the question. Then after they are noted down the final thing required is to find the answer to the question by correct calculations.
Distance for which the truck traveled = 280 kilometers
Time taken to travel the given distance = 4 hours.
Then
Speed of the truck = Distance traveled/Time taken
                              = 280/4 km/hr
                             = 70 km/hr
So the truck was traveling at a speed of 70 kilometers per hour. This is the answer to both the questions that have been put up. So there is no need for any kind of second calculation.
8 0
3 years ago
The measures of ∠1, ∠2, and ∠3 are 40%, 12.5%, and 25% of the sum of the angle measures of the quadrilateral. Find the value of
sweet [91]

The value of x is 81

Step-by-step explanation:

The sum of the interior angles of any quadrilateral is 360°

  • The measure of ∠1 is 40% of the sum of the angle measures of the quadrilateral
  • The measure of ∠2 is 12.5% of the sum of the angle measures of the quadrilateral
  • The measure of ∠3 is 25% of the sum of the angle measures of the quadrilateral
  • We need to find the value of x

∵ The figure have 4 sides

∴ The figure is a quadrilateral

∵ The sum of the measures of the interior angles of a

    quadrilateral is 360°

- Add the four angles and equate the sum by 360

∴ m∠1 + m∠2 + m∠3 + x = 360

∵ m∠1 = 40% of the sum of the angle measures of the quadrilateral

∴ m∠1 = 40% × 360 = \frac{40}{100} × 360 = 144°

∵ m∠2 = 12.5% of the sum of the angle measures of the quadrilateral

∴ m∠2 = 12.5% × 360 = \frac{12.5}{100} × 360 = 45°

∵ m∠3 = 25% of the sum of the angle measures of the quadrilateral

∴ m∠3 = 25% × 360 = \frac{25}{100} × 360 = 90°

- Substitute these values in the equation above

∴ 144 + 45 + 90 + x = 360

- Add the like terms in the left hand side

∴ 279 + x = 360

- Subtract 279 from both sides

∴ x = 81°

The value of x is 81

Learn more:

You can learn more about the polygons in brainly.com/question/6281564

#LearnwithBrainly

5 0
3 years ago
Easy math for u trust me
iogann1982 [59]
Answer:
6457 + 7925 = 14382
5 0
2 years ago
Read 2 more answers
(25 points) <br> What is the value of k?<br><br> Please explain your answer
galben [10]

Answer:

que?

Step-by-step explanation:

6 0
3 years ago
Given the function f(x)= √x+7, find the value of x when f(x)=1
solniwko [45]
F(x) = 1, so we make the entire equation equal 1.

1 = sqrt(x) + 7

To make x by itself subtract 7 from both sides

-6 = sqrt(x)

Square both sides to remove sqrt from x.

36 = x

The value of x is 36
7 0
2 years ago
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