1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kap26 [50]
3 years ago
8

6. Which expression is equivalent to -21 + 28x?

Mathematics
1 answer:
Rina8888 [55]3 years ago
3 0
Solution,
-28x^2+35x
take the common,
-7x(4x-5)
The answer is -7x(4x-5)
Here,
If we solve,
-7x(4x-5)
Then, the answer would be:
= -7x*4x+7x*5
= -28x^2+35x
Hope it helps
Good luck on your assignment
You might be interested in
<img src="https://tex.z-dn.net/?f=%5Ccolor%7Bpink%7D%5Crm%5Chuge%7BHelp%7D" id="TexFormula1" title="\color{pink}\rm\huge{Help}"
Llana [10]

Answer:

  • See below

Step-by-step explanation:

#1 Synthetic method

  • 2x³ + x² - 2x - 4 ÷ x + 1 = 2x² - x - 1 rem 3

--------------------------------------

x + 1 | 2x³ + x² - 2x + 4

---------------------------------

    -1 |  2       1    -2    4

       <u>|         - 2     1     1 </u>

          2     - 1    - 1    3

#2 Long division

  • 3x³ - 5x² - 26x - 8 ÷ 3x + 1 = x² - 2x - 8

--------------------------------------

3x³ - 5x² - 26x - 8  <u>| 3x + 1</u>     = x² - 2x - 8

<u>3x³ + x²</u>

       -6x² - 26x

       <u>-6x² - 2x</u>

                  - 24x - 8

                  <u>- 24x - 8</u>

                             0

8 0
3 years ago
How many solutions does the following system have? <br> y = 2x - 12<br> y = 3x + 12
Readme [11.4K]
The two slopes of the two equations are 2 and 3 respectively. They are the values just to the left of the x. Since the slopes are different, this means the lines are angled so that they are not parallel.

Non-parallel lines will cross exactly one time. So there is exactly one solution.
5 0
4 years ago
a 6lb watermelon costs $2.40 before a 30% discount. Which equation would allow you to find the discounted price of the watermelo
ycow [4]
The answer should be 1.68
5 0
4 years ago
Compute 4.659×104−2.14×104. Round the answer appropriately.
iogann1982 [59]

Answer:

261.98 is the value of the given expression.

Step-by-step explanation:

We have to find the value of the following expression:

4.659\times 104 - 2.14\times 104

Using the associative property, we can write and solve the given expression as:

(4.659 - 2.14)\times 104\\=2.519\times 104\\=261.976

Rounding off the answer, we get,

261.976\approx 261.98

Thus, 261.98 is the value of the given expression.

3 0
4 years ago
Help?? Geometry, please hurry
djyliett [7]

Answer:

x=119 and x=80

Step-by-step explanation: a triangle always equals to 180

x+61=180

x+61-61=180-61

x=119

x+100=180

x+100-100=180-100

x=80

7 0
3 years ago
Other questions:
  • Henry has 15 lawns mowed out of 60 lawns. What percent of the lawns does Henry still have to mow?
    10·1 answer
  • How many times can 10 go into 8000
    12·2 answers
  • X − 0.5(k − 3x) = 1.5x − k In terms of k, what does x equal?
    13·1 answer
  • Factor completely 4x2 − 8x + 4. A Prime B 4x(x2 − 2x + 1) C 4(x2 − 2x + 1) D 4(x2 + 4)
    8·2 answers
  • Explain why the order of the coordinates does not matter when calculating length in geometry?
    9·2 answers
  • How do you solve ??<br> 5x^4( 6x^4-3x^2 +7)
    10·1 answer
  • I will give brainliest
    6·1 answer
  • I NEED HELPPPP <br> Which graph represents the inequality 3y−5x≥−6?
    6·1 answer
  • Determine whether the ordered pair is a solution of the linear equation.<br> y=x-1/2,(15,-2)
    5·2 answers
  • What does writing 8x mean.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!