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
elena55 [62]
3 years ago
5

Whats the answer for (5x + 8)(4x² + 6x - 8)

Mathematics
1 answer:
mestny [16]3 years ago
4 0
(5x + 8)(4x^2 + 6x - 8)\\ \\ 5x(4x^2 + 6x - 8) + 8(4x^2 + 6x - 8) \\ \\ 20x^3 + 30x^2 - 40x + 8(4x^2 + 6x - 8) \\ \\ 20x^3 + 30x^2 - 40x + 32x^2 + 48x - 64 \\ \\ 20x^3 + (30x^2 + 32x^2) + (-40x + 48x) - 64 \\ \\ 20x^3 + 62x^2 + 8x - 64 \\ \\

The final result is: 20x^3 + 62x^2 + 8x - 64.
You might be interested in
Caroline wants to make cookies to bring to a party. she will need to double the recipe to have enough. how much of each ingredia
anygoal [31]

Answer:

1 1/2 cups of peanut butter

1 cup of vegetable shortening

2 1/2 cups grimly packed light brown sugar

6 tablespoons of milk

5 1/2 teaspoon vanilla extract

2 large eggs

3 cups of flour

1 1/2 teaspoon of baking soda

1/2 teaspoon of salt

Step-by-step explanation:

You just double everything by 2

3 0
2 years ago
What is the approximate volume of the sphere? Use 3.14 to approximate pi and round the answer to the nearest hundredth if necess
zvonat [6]
The answer is D. Hope this helped =)
3 0
3 years ago
i need help. Semir, Sarah, and SungSo decided to raise money for a local homeless shelter by working in a local deli. The deli a
IgorLugansk [536]
According to the question, 
Let,
"n" represent the number of miles semir walked.
"y" represent the number of miles sarah walked.
Now, according to the question,

y = 2n - 5  ........................this is your equation 
Also,
the question states, each of them collect $18 in pledges for every miles walked.

Given,
Sarah collected $450
Now, 

Using unitary method,

Sarah collects $18 for 1 mile
Sarah collects $1 for (1 / $18) mile
Sarah collects $450 for (1 / 18) * 450 mile
                                   = 25 miles
So, Sarah walks 25 miles.
Now,
Taking equation,
y = 2n - 5
Since, y is the no. of miles sarah walked, we can write 25 in place of "y" So,
(25) = 2n - 5
25 + 5 = 2n
30 = 2n
30 / 2 = n
15 = n

Since, "n" is the no. of miles that semir walked, Semir walked 15 miles.


7 0
3 years ago
The square shown has a perimeter of 32 units. The square
ivanzaharov [21]

Answer:

A cylinder with a circumference of about 60 units.

8 0
3 years ago
Solve for x and y <br> x+y=1<br> 2y-x=8
lara31 [8.8K]

Answer:

(- 2, 3 )

Step-by-step explanation:

Given the 2 equations

x + y = 1 → (1)

2y - x = 8 → (2)

Adding the 2 equations term by term will eliminate the x- term

(x - x) + (y + 2y) = (1 + 8), that is

3y = 9 ( divide both sides by 3 )

y = 3

Substitute y = 3 into either of the 2 equations and solve for y

Substituting y = 3 in (1)

x + 3 = 1 ( subtract 3 from both sides )

x = - 2

Solution is (- 2, 3 )

7 0
3 years ago
Other questions:
  • The number 4 is in both the domain and the range of the function A(n).
    13·1 answer
  • Determine whether the statement is true or false. -3 ≥ -15
    10·1 answer
  • The Burke family is taking a 3-week vacation to Alaska. How many days will their vacation last?
    11·1 answer
  • one of the Interior angles of a triangle is equal to 30 degrees and one of the exterior angles is equal to 40 degrees find the r
    11·2 answers
  • We invested $10000 into two bank accounts. One account earns 14% per year, the other account earns 8% per year. How much did we
    15·1 answer
  • Write 342 to 1 significant figure​
    14·1 answer
  • Volume of a triangular prism with a height of 3 cm, length of 12 cm, and width of 8 cm
    7·1 answer
  • 4:3 12 kittens 19 adults
    13·1 answer
  • Distributive property pls helpp
    11·1 answer
  • On the provided graph, plot the points where the following function crosses the x-axis and the y-axis.g(x)=-5^(2)+5
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!