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
Studentka2010 [4]
3 years ago
11

I don’t understand can someone please explain how to work this out and what the answer is

Mathematics
1 answer:
joja [24]3 years ago
4 0

When you see an equation with parenthesis around it, you can use this:

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

Otherwise known as PEMDAS.

We can see that in the equation, there are parenthesis, so we can open those. We open parenthesis by taking the number right next to the parenthesis (or outside the parenthesis) and we multiply that number by everything inside. So this is what it would look like:

-2x^2 - 10x + 8

See how the signs changed? This rule only applies when you multiply something, but here is how I think of it:

+ and + always equals +.

- and - always equals +.

- and + always equals -.

+ and - always equals -.

So that's it! Just to be clear, the answer is:

-2x^2 - 10x + 8

Hope I helped, sorry if I'm wrong!

`Mschmindy

You might be interested in
Is anyone able to answer this for me? GIVING BRAINLIEST! hurry!
svetoff [14.1K]
Nicoles pattern:

1
5
17
53
161

Ian’s pattern:

0
1
3
7
15

Ordered pair:

(1, 0)
(5, 1)
(17, 3)
(53, 7)
(161, 15)



Table 1 -

Sequence 1:

9
11
13
15
17

Sequence 2:

5
8
11
14
17

Ordered pair:

(9, 5)
(11, 8)
(13, 11)
(15, 14)
(17, 17)

Table 2 -

Sequence 1:

20
16
12
8
4

Sequence 2:

20
17
14
11
8

Ordered pair:

(20, 20)
(16, 17)
(12, 14)
(8, 11)
(4, 8)

Table 3 -

Sequence 1:

1
3
7
15
31

Sequence 2:

40
24
16
12
10

Ordered pair:

(1, 40)
(3, 24)
(7, 16)
(15, 12)
(31, 10)
5 0
2 years ago
Arrange the systems of equations in order from least to greatest based on the number of solutions for each system.
Rama09 [41]

Answer:

work is shown and pictured

8 0
3 years ago
Which<br> sequence is modeled by the graph below? (6 points)
vovangra [49]
You haven’t put a picture of the graph
8 0
2 years ago
Jeffrey is going to charge an initial fee for mowing lawns of $10 and then wants to charge an hourly rate. If he knows that he w
astraxan [27]
The answer would be B.) $15 because for the total charge of $40 you need to subtract the initial fee of $10 and then divide the remainder by 2 since it takes him 2 hours. <span>40-10/2</span> = <span>30/2</span> = <span>$15 (USA testprep)</span>
7 0
3 years ago
Read 2 more answers
Evaluate the expression when n=3
WARRIOR [948]
The answer is 22. Work: n=3 and 3 to the second power would be 9 because 3x3=9 and 9+13=22. Hope I could help! Tell me if i’m wrong though!
8 0
2 years ago
Other questions:
  • Using the numbers 2,0,1,9 in order what exoression do you make to equal 6
    7·1 answer
  • What is The answer to this question below:
    12·2 answers
  • carla can type 265 characters a minute on her keyboard. at that rate, how many characters can she type in 15 minutes?
    8·1 answer
  • What kind of angles are ADB and BDC
    11·1 answer
  • Round 2.972 to the nearest hundredth
    11·1 answer
  • After paying 9 dollars for the pie, Keith has 52 dollars left.
    10·1 answer
  • Please answer this question I can't seem to figure it out.
    14·2 answers
  • On a random Friday in the fall, 95% of students were present at school. If there are a total of 420 students enrolled, then how
    9·1 answer
  • I NEED HELP PLZ I WILL GIVE THANKS AND BRAINLIST
    9·1 answer
  • What is the ratio of 5 whales and 5 fish?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!