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
Darina [25.2K]
3 years ago
10

(5a^2+6a+2)-(7a^2-7a-5)

Mathematics
1 answer:
krok68 [10]3 years ago
8 0

For this case we must simplify the following expression:(5a^ 2 + 6a + 2) - (7a^ 2-7a-5) =

We eliminate the parentheses taking into account that:

- * + = -\\- * - = +

So:

5a ^ 2 + 6a + 2-7a ^ 2 + 7a + 5 =

We add similar terms taking into account that:

Equal signs are added and the same sign is placed.

Different signs are subtracted and the major sign is placed.

5a ^ 2-7a^2 + 6a + 7a +2 +5 =\\-2a ^ 2 + 13a + 7

Answer:

-2a ^ 2 + 13a + 7

You might be interested in
joseph saves 30% of his allowace each week. if he saves 24$ in 5 weeks. how much allowance does joseph recieve in each week
creativ13 [48]

Answer:

$24/5 weeks = $4.80 saved per week.

$4.80 is 30% of what number?.....

4.8=0.3*X....... 4.8/0.3=X ........X=16

So, Joseph receives $16 per week.

Step-by-step explanation:

5 0
3 years ago
X+2=19 write a story
ValentinkaMS [17]
X=17

jack and jill went up the hill

THE END
6 0
3 years ago
Read 2 more answers
suppose that 4 out of 5 people prefer bright white toothpaste. what percent of people prefer that toothpaste ?
gavmur [86]
80% of people prefer that toothpaste
8 0
3 years ago
Which does NOT represent the interior angle measures of a triangle?
lord [1]

Answer:A

Step-by-step explanation:

Interior angles of a triangle ALWAYS have to be equal to 180

The sum of A is 180, however, those angles wont work because they have to be more close to eachother for it to be possible

The Triangle Inequality Theorem states the longest side must be shorter than the sum of the other 2 sides

5 0
2 years ago
Read 2 more answers
15) The sum of one-fourth, one-ninth and one- third of a number is 25. Find the number.​
klio [65]

Answer:

Step-by-step explanation:

(1/4 + 1/9 + 1/3)x = 25.

x = 36

7 0
3 years ago
Read 2 more answers
Other questions:
  • Solving a word problem with two unknown using a linear equation
    15·1 answer
  • Evaluate the polynomial when x=4 y=-4<br> x^2-3y^2+2xy
    11·1 answer
  • What additional information is needed to prove that the triangles are congruent using the AAS congruence theorem?
    7·1 answer
  • What’s the answer tho question 7 please
    13·1 answer
  • Can someone please tell me the answer. There is a picture. Thank you!
    12·1 answer
  • Which numbers are a distance of 6 units from −2 on a number line
    10·2 answers
  • Homy had a box of 100 coloured pencils.55 were green 23 were black 4 were yellow and the rest were red. Write these as a percent
    9·1 answer
  • The meadian of 26 29 31 33 36
    13·2 answers
  • Write the number 7,070,000,000 in scientific notation.
    13·2 answers
  • If there are 15 cats in the apartment complex how many dogs are there?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!