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
Alina [70]
3 years ago
11

Factor the following polynomial completely. 2x2 – 10x – 28

Mathematics
1 answer:
erastovalidia [21]3 years ago
5 0

Answer:

2(x - 7)(x + 2)

Step-by-step explanation:

Given

2x² - 10x - 28 ← factor out 2 from each term

= 2(x² - 5x - 14) ← factor the quadratic

Consider the factors of the constant term (- 14) which sum to give the coefficient of the x- term (- 5)

The factors are - 7 and + 2 , since

- 7 × 2 = - 14 and - 7 + 2 = - 5 , thus

x² - 5x - 14 = (x - 7)(x + 2) and

2x² - 10x - 28 = 2(x - 7)(x + 2)

You might be interested in
Find the height of a door on a scale drawing if the door is 2 meters tall and the scale is 1 centimeter = 4 meters. Round to the
larisa86 [58]
The door would be 0.5 cm tall

Answer: 0.5
7 0
2 years ago
What is the area of a rectangular rug that<br> measures 8 1/4 feet by 10 3/4 feet?<br> Area:
ziro4ka [17]

Answer:

<h2>354 \frac{3}{4}  \:  \: feet</h2>

Step-by-step explanation:

= 8 \frac{1}{4}  \times 10 \frac{3}{4}

= \frac{33}{4}  \times  \frac{43}{4}

=  \frac{1419}{4}

= 354 \frac{3}{4}  \:  \: feet

7 0
2 years ago
Which type of factoring is used to factor the following expression:<br> 2x^2 + 7x- 30
svetlana [45]

Answer:

 (2x - 5) • (x + 6)

7 0
3 years ago
Please help.................
evablogger [386]
It usually works well to do what the instructions tell you. Multiply each diameter by 3.14.

a) 3.14×6 cm = 18.84 cm

b) [can't read the picture]

d) 3.14×9 in = 28.26 in

e) 3.14×11 mm = 34.54 mm
7 0
3 years ago
Jackson has three cartons of gumballs. There are 100 boxes in each carton. There are 100 gumballs in each box
lilavasa [31]

Answer:

3. 10000

Step-by-step explanation:

Given the following :

Number of gumball cartons = 3

Number of boxes per carton = 100

Number of gumballs per box = 100

The number of gumballs can be expressed in the form : (a. 10) ; where ; a = prime number ; b = whole number

Values of a and b?

Total number of gumballs :

Number of carton × number of boxes per carton × number of gumballs per box

3 × 100 × 100

Hence, writing the expression in the form: a. 10

a. 10 = 3 × 10000

4 0
3 years ago
Other questions:
  • What is the greatest common factor of 8m^{2}8m
    10·1 answer
  • HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    12·2 answers
  • If 32x+1 -3x+5, what is the value of x?
    5·1 answer
  • Geometry help please
    15·2 answers
  • Evaluate. 5/8−(14)2= ________
    15·1 answer
  • Plz help on these problems.
    11·1 answer
  • There were 15 students who brought an item for show-and-tell. Each student had 3 minutes to present their item. Write an equatio
    15·1 answer
  • PLS HELP GRADES ARE DUE PLSS
    7·1 answer
  • Evaluate each expression. Enter the correct answers in the boxes. (60−6)×(13)3+27÷3= ( 60 − 6 ) × ( 1 3 ) 3 + 27 ÷ 3 = 82÷4×(2+3
    10·1 answer
  • 3 1/2x 4 <br><br> Help I'm Failing Class
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!