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
vredina [299]
2 years ago
15

HelpWhat should be added to –7mn+2m2+3n2to obtain 5m2+2mn-9n2​

Mathematics
1 answer:
aalyn [17]2 years ago
6 0

The polynomial to be added to –7mn + 2m² + 3n² to obtain 5m² + 2mn - 9n² is: 3m² - 11n² + 9mn.

<h3>Addition of Polynomials</h3>

Like terms should be combined together when adding polynomials.

Let x represent the polynomial expression that would be added to –7mn + 2m² + 3n² to obtain 5m² + 2mn - 9n².

Therefore:

–7mn + 2m² + 3n² + x = 5m² + 2mn - 9n².

x = 5m² + 2mn - 9n² - (-7mn + 2m² + 3n²)

x = 5m² + 2mn - 9n² + 7mn - 2m² - 3n²

Combine like terms together.

x = 3m² - 11n² + 9mn

Therefore, the polynomial to be added to –7mn + 2m² + 3n² to obtain 5m² + 2mn - 9n² is: 3m² - 11n² + 9mn.

Learn more about polynomial on:

brainly.com/question/24662212

You might be interested in
What is the value of X
amid [387]

Answer:

a. 5

Step-by-step explanation:

that is an acute angle which is less than 90*, the only answer choice to give u and acute angle is 5

4 0
3 years ago
Read 2 more answers
Can anyone solve 3m-5n=15 for N
Kazeer [188]
I hope this helps you

7 0
3 years ago
HELP PLS!!!<br> Solve the inequality $x^3 + 4x &gt; 5x^2$.
rewona [7]

Answer:

de fk?

Step-by-step explanation:

wth is that

8 0
3 years ago
What is 22% of 50?<br> ОА.<br> ОВ.<br> 28<br> Ос.<br> 22<br> OD. 11
natima [27]

Answer:

11

Step-by-step explanation:

3 0
3 years ago
An item is regularly priced at $65. Laura bought it at a discount of 15% off the regular price. How much did Laura pay?
Sonja [21]

Answer:

9.75

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • How many right angles are there in 270 degrees
    5·1 answer
  • According to the rational root theorem, which statement about f(x)= 12x^3-5x^2+6x+9 is true?
    7·2 answers
  • Find the sum of -x-2 and 9x^2+5
    9·1 answer
  • 1. Find the domain of the function shown. Write your answer in interval notation.
    15·1 answer
  • Given the parent function f(x)=x^3 give the best description of the graph of y=x^3+3 .
    13·1 answer
  • 4. María charges $15 for 3 h of babysitting.<br><br> a) What is Maria's rate per hour?
    9·2 answers
  • Pls5sssssssssssssssssssssssssss
    5·1 answer
  • Do the ones you know. loving divers license o-o&lt;3
    10·1 answer
  • Please help me answer this!! i will give brainliest and 5 star rating!!
    10·1 answer
  • I’d appreciate it please helpppp
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!