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
viktelen [127]
3 years ago
9

Multiply and write in standard form. (2x+4) (x2−8x+7)

Mathematics
2 answers:
Naddika [18.5K]3 years ago
6 0

Answer:

{2x}^{3}  -  {12x}^{2}  - 18x + 28

Step-by-step explanation:

(2x + 4)( {x}^{2}  - 8x + 7) \\  =  {2x}^{3}  - {16x}^{2}  + 14x +  {4x}^{2}  - 32x + 28 \\  =  {2x}^{3}  -  {12x}^{2}  - 18x + 28

astraxan [27]3 years ago
4 0

Answer:

2x³ - 12x² - 18x + 28

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor, that is

2x(x² - 8x + 7) + 4(x² - 8x + 7) ← distribute both parenthesis

= 2x³ - 16x² + 14x + 4x² - 32x + 28 ← collect like terms

= 2x³ - 12x² - 18x + 28 ← in standard form

You might be interested in
Help please will mark brainliest!!!
solniwko [45]

Answer:

945

Step-by-step explanation:

8 0
3 years ago
What is the domain of Y = log2X?
pashok25 [27]

Answer:

All real numbers greater than 0

Step-by-step explanation:

When you look at   y = log (2)  x

Base 2,   exponent y.

x =  2^y

x  can only be a positive number.

7 0
3 years ago
The school cafeteria served three kinds of lunches today to 225 students. The students chose the cheeseburgers three times more
r-ruslan [8.4K]

1)

Let the number of fish sandwiches sold br represented by x

Then the number of grilled cheese sold is 2X

and the number of cheeseburgers 3(2x)

x + 2x + 3(2x) = 225

and solve

2)

Let x represent the no. of pounds of peanuts

Then x + 14 represents the no of pounds of the mixture

And

(2.25)x + (3.25)(14) = (2.65)(x + 14

and solve

3) Try on your own

plz mark me as brainliest :)

3 0
3 years ago
Garth estimated the height of the door to his classroom in meters.what is a reasonable estimate?
insens350 [35]
A reasonable estimate is an educated guess made by an observer based on that person's current knowledge and following observations. For example, If Garth knew that he was 1.2 meters tall, and he observed that the door was approximately twice his own height, Garth could then make the reasonable estimate that the door is about 2.4 meters tall.
8 0
3 years ago
Can someone help me?
sattari [20]

Answer:

176 cubic feet I think

Step-by-step explanation:

352 / 2 = 176

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution to the system of equations?<br><br> y = 2x – 3.5<br><br> x – 2y = –14
    12·1 answer
  • $750 are deposited into an account quarterly for six years at an interest rate of 5.3% compound quarterly. how much is in the ac
    8·1 answer
  • Which statement is true?
    10·2 answers
  • Polynomial standard form (9 + m)(-m + 9)
    12·2 answers
  • How many smaller rectangles are there in the area model 27 x 83
    13·1 answer
  • I will mark you brainiest if you can answer this
    9·1 answer
  • Derrick had $100 to spend at a sporting goods store. He bought a pair of shorts for $11.36 and a pair of athletic shoes for $47.
    6·2 answers
  • Plz plz answer this 11pts
    11·1 answer
  • What is the domain of the function f(x) = square root x-9+5?
    15·1 answer
  • 1.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!