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
meriva
3 years ago
12

Factor by grouping x^3-4x^2+7x-28

Mathematics
1 answer:
Komok [63]3 years ago
5 0

Answer:

(x - 4)(x^2 + 7)

Step-by-step explanation:

x^2 is a factor of the first two terms:  x^3 - 4x^2 = x^2(x - 4).

7 is a factor of the last two terms:  7(x - 4).  

Note how (x - 4) is a factor of the entire four-term expression given above.

Then:   x^3-4x^2+7x-28 = (x - 4)(x^2 + 7)

You might be interested in
I NEED HELP ASAP 85 POINTS At a bargain store, Tanya bought 5 items that each cost the same amount. Tony bought 3 items that eac
Andrei [34K]

Answer:

Step-by-step explanation:

A) 5x = 3(x - 2.5)

-----------------------

B)

Distribute

5x = 3x - 7.5

Subtract 3x from both sides

2x = -7.5

Divde both sides by 2

x = -3.75

-----------------------

C)

5 * (-3.75) = 3(-3.75 - 2.5)

-18.75 = -18.75

D)

Tanya paid –$3.75 for each of 5 items

Tony paid –$6.25 for each of 3 items

There seems to be an error in the question since the cost of items is negative

Tony bought fewer items and paid less for each.

5 0
3 years ago
war 1 Luz has pound of cherries. She divides the 3 dag int cherries equally into 2 bags. What fraction of pound of cherries is i
irina [24]

Step-by-step explanation:

is the number of unit squares that cover surface of a figure.

8 0
3 years ago
Can Someone help me with this work
Neporo4naja [7]

Answer:

Oar City is cheaper

Step-by-step explanation:

27/3=9 (Boat Bunker)

45/9=5 (Oar City)

$4 Cheaper than Boat Bunker

Brainlist?

8 0
3 years ago
Read 2 more answers
Simplify −2(2h+10)+4h
Anuta_ua [19.1K]
First distribute: -4h - 20 + 4h
Combine like terms: -20
The answer is -20
7 0
3 years ago
Read 2 more answers
NO LINKS! Help me with this problem​
Basile [38]

{\qquad\qquad\huge\underline{{\sf Answer}}}

Let's solve ~

Equation of directrix is : y = 1, so we can say that it's a parabola of form : -

\qquad \sf  \dashrightarrow \: (x - h) {}^{2}  = 4a(y - k)

  • h = x - coordinate of focus = -4

  • k = y - coordinate of focus = 5

  • a = half the perpendicular distance between directrix and focus = 1/2(5 - 1) = 1/2(4) = 2

and since the focus is above the directrix, it's a parabola with upward opening.

\qquad \sf  \dashrightarrow \: (x - ( - 4)) {}^{2}  = 4(2)(y - 5)

\qquad \sf  \dashrightarrow \: (x  + 4) {}^{2}  = 8(y - 5)

\qquad \sf  \dashrightarrow \:  {x}^{2}  + 8x + 16 = 8y - 40

\qquad \sf  \dashrightarrow \: 8y =  {x}^{2}  + 8x + 56

\qquad \sf  \dashrightarrow \: y =  \cfrac{1}{8} {x}^{2}   + x + 7

6 0
1 year ago
Read 2 more answers
Other questions:
  • Nadine made 16 cups of punch for a class party. One serving is 1/2 cup. How many servings of punch did Nadine make
    11·1 answer
  • Find the measurement of arc AB<br><br> 45°<br> 60°<br> 90°<br> 180°
    7·1 answer
  • Lisa and 3 of her friends want to share 3 apples equally. write an expression to show what fraction of the apples each person sh
    9·1 answer
  • Credit may be extended on a credit card up to the individual’s what?
    15·1 answer
  • I don’t really understand how you figure out the points of a figure on rotation, please explain!
    14·1 answer
  • A triangle has a perimeter of 90 centimeters write and use a linear system
    12·1 answer
  • The data represent the results for a test for a certain disease. Assume one individual from the group is randomly selected. Find
    5·1 answer
  • Can anyone help please? I’ll mark brainliest!!!
    10·1 answer
  • Find the angles y and x​
    9·1 answer
  • Hello please answer :) will give brainlst
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!