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
STatiana [176]
2 years ago
15

Explain step by step how to use the horizontal method the multiple the two polynomials

Mathematics
1 answer:
MatroZZZ [7]2 years ago
4 0

Answer:

Step-by-step explanation:

Multiply each term of the first polynomial with   the second polynomial. Then combine the like terms.

(3a<em>² + 5a - 2)* (5a² -3a + 4)</em>

<em> = 3a² *(5a² -3a + 4)  + 5a*(5a² -3a + 4)  - 2*(5a² -3a + 4)</em>

<em>=3a²*5a² - 3a*3a² + 4*3a² +  5a*5a² - 3a*5a  + 4*5a + 5a²*(-2) - 3a*(-2) + 4*(-2)</em>

<em>=15a⁴ - 9a³  + 12a² + 25a³ - 15a² + 20a - 10a² + 6a - 8</em>

<em>= 15a⁴ </em><u><em>- 9a³ + 25a³</em></u><em>   +</em><u><em> 12a² - 15a² - 10a²</em></u><em>   +</em><u><em> 20a +6a </em></u><em>- 8</em>

<em>= 15a⁴ + 16a³  - 13a² +26a  - 8</em>

You might be interested in
PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHR/BEST ANSWER. <br><br> sorry for the screen
damaskus [11]

Answer:

The answer is A I just looked it up on mathaway and it is never wrong

Step-by-step explanation:

Standard form always has the largest coefficients first

7 0
3 years ago
Read 2 more answers
In ΔDEF, e = 8.7 inches, ∠F=8° and ∠D=34°. Find the length of f, to the nearest 10th of an inch.
fomenos

Answer:

1.8 in

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Mr. Black is flying a kite above a field on a 65 foot string. The angle of elevation of the kite is 70 degrees. How high is the
Elan Coil [88]

Answer:

The correct answer is 61.08 foot.

Step-by-step explanation:

Length of the string of the kite, Mr. Black is flying is 65 foot. Thus the length between the kite and Mr. Black is given by 65 foot.

Angle of elevation is 70°.

We need to calculate the height of the kite above Mr. Black's head. The height is given by finding the sine of the angle of elevation.

Let the height be x foot.

Thus sin 70° = \frac{x}{65}

⇒ x = sin 70° × 65

⇒ x = 61.08

Thus the height of the kite above Mr. Black head is 61.08 foot.

6 0
3 years ago
If a = 5 and b = 7, what is the measure of ∠A? (round to the nearest tenth of a degree)
nirvana33 [79]

With assumptions about it being a *right* triangle and a and b being the legs, the answer is:  

B) 35.5°

7 0
3 years ago
Read 2 more answers
Please help will mark brainliest!
borishaifa [10]

Answer:

1. Vertex (-3,2)

A) (x+3)² + 5

B) (x-3)² + 2

C) (x-1)² -5

I hope these are all correct

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which Symbol replaces ? to make the statement true.
    13·2 answers
  • Can you please help me
    5·1 answer
  • There are 90 cal in 6 ounces of juice how many calories are in 8 ounces of juice?
    15·1 answer
  • A reflection over the x-axis and y-axis produces the same result as what other transformation?
    13·1 answer
  • Please help me please
    13·1 answer
  • Plzzzzzzzzzzzzz help
    15·2 answers
  • 3/8 + 1/8 - 1/3 + 1/4 =
    12·2 answers
  • A dot plot titled Number of classes going from 3 to 7. 3 has 5 dots, 4 has 6 dots, 5 has 5 dots, 6 has 4 dots, 7 has 3 dots.
    13·2 answers
  • Barney purchases an MP3 player from an online store for $86.00. On the checkout page, he notices that the store has applied a sa
    9·1 answer
  • What is the x- coordinate of the zero of the graphed line?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!