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
Tcecarenko [31]
2 years ago
7

When asked to rewrite the expression (x3 + 2x? – x)-(-x3 + 2x2 + 6), Denise made a mistake. She did not get the correct answer,

2x3 -x-6. Identify where she
made her made her mistake.
Your answer
She started with the original problem: (x3 + 2x2 - x)-(-x3 + 2x2 + 6)
o She rewrote the problem without parentheses: x3+ 2x2 - x + x3 – 2x2 +6
She rearranged the terms to put the like terms together: x3+ x3 + 2x2 – 2x2-x+6
She combined like terms to get a simplified answer: 2x3 - x + 6
Mathematics
1 answer:
DanielleElmas [232]2 years ago
3 0

Answer:

She rewrote the problem without parentheses: x3+ 2x2 - x + x3 – 2x2 +6

Step-by-step explanation:

It looks like she didn't fully distribute the -

(x3 + 2x2 - x)-(-x3 + 2x2 + 6) :Original

x3+ 2x2 - x + x3 – 2x2 +6 :Changed

~

(x3 + 2x2 - x)-(-x3 + 2x2 + 6)

x3 + 2x2 - x + x3 - 2x2 - 6

x3 + x3 + 2x2 - 2x2 -x - 6

2x3-x-6

I hope this helps ^-^

You might be interested in
I’m beyond lost. I really struggle with geometry
sammy [17]
Same. You should use Desmos online graphing calculator if you have anymore problems like this. You just put it into the calculator and it graphs the line. In this case, the line must be perpendicular to the line CD, basically a horizontal version of the line. I put all of these into Desmos and the one that is perpendicular is -0.5x + 5.5. Hope this will help you in the future!
3 0
3 years ago
On average, outdoor cats live 3.18 years and indoor cats live 16.7 years. How much longer does an average indoor cat live than a
Nuetrik [128]
Hello! The answer to your question is that the average outdoor cat will live about 13.52 years longer than the average indoor cat.
16.70 - 3.18 = 13.52
Hope this helped! :D
8 0
2 years ago
casey is six time as old as Ralph, In two years, she will be four time as old as Ralph. How old is each of them now?
Keith_Richards [23]

Casey is 18 years old and Ralph is 3 years old.

Step-by-step explanation:

Let,

Age of Casey = x

Age of Ralph = y

According to given statement;

x = 6y     Eqn 1

In two years

x+2=4(y+2)

x+2=4y+8

x = 4y+8-2

x = 4y+6     Eqn 2

Putting value of x from Eqn 1 in Eqn 2

6y=4y+6 \\6y-4y=6\\2y=6

Dividing both sides by 2

\frac{2y}{2}=\frac{6}{2}\\y=3

Putting y=3 in Eqn 1

x=6(3)\\x=18

Casey is 18 years old and Ralph is 3 years old.

Keywords: word problems, substitution method

Learn more about substitution method at:

  • brainly.com/question/12973601
  • brainly.com/question/13063819

#LearnwithBrainly

7 0
3 years ago
Divide 6 divided by 3/5 <br><br><br> Answer only if u know please:)
meriva

Answer:

The answer is 10 or 10/1

3 0
2 years ago
Verdadero o Falso:
crimeas [40]
B is the correct answer
8 0
3 years ago
Other questions:
  • Please Help!! 10 Points and Brainliest!!!<br><br> WRONG ANSWERS WILL BE REPORTED.
    7·2 answers
  • There is a part c<br> Part c<br> What is the length and width of each section?
    12·1 answer
  • Find the volume of a rectangular prism with length 32 feet width 50 feet and height 100 feet? Please hurry!
    13·1 answer
  • How to do this question plz answer me step by step plzz ​
    15·1 answer
  • 12,108 round to nearest thousand
    7·1 answer
  • The table shows a cricket clubs income in 2016 from a fete , a quiz and membership fees
    14·1 answer
  • Solve for X. Giving Brainliest
    5·1 answer
  • Please help. 100 points + brainliest
    10·2 answers
  • 2+2 and 48÷6 .......................................... .. ..........
    15·2 answers
  • Anyone know this problem need asap
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!