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
Elena-2011 [213]
3 years ago
11

For the equation x2 + 2x − 8 = 0, what is the sum of the solutions?

Mathematics
1 answer:
Katen [24]3 years ago
5 0

Answer:

-2

Step-by-step explanation:

x^2 + 2x − 8 = 0

What 2 numbers multiply to -8 and add to 2

4*-2 = -8

4-2 = 2

(x+4) (x-2)=0

Using the zero product property

x+4 =0         x-2=0

x+4-4 =0-4      x-2+2=0+2

x = -4               x=2

We want the sum of the solutions

-4+2 = -2

You might be interested in
Need Help!!!! Please!!! Explain!!!! Don't Understand!!!
Arturiano [62]

90  it is a right tranigle

6 0
3 years ago
How do you find measure a and c
astra-53 [7]
You can use the measure of 112 on the similar shape to find b, as they are same side exterior angles. From there, you can find both a and c, because a/b and b/c are supplementary angles. 

a = 68 degrees

c = 68 degrees
5 0
3 years ago
Read 2 more answers
F(x) = (x - 4)(x+2) ?
oee [108]

Answer:

Step-by-step explanation:

f(x) = (x - 4)(x + 2)

f(x) = x^2 + 2x - 4x - 8

f(x) = x^2 - 2x - 8

8 0
3 years ago
Read 2 more answers
4 1/2 cups converted to fluid ounces
Dmitry_Shevchenko [17]

Answer:

4.5 cup to oz is 36 FLUID OUNCES

6 0
3 years ago
Solve for d.<br> 3d - d - 1 = 5<br><br> HELP
Alina [70]

Answer:

d=3

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • 14. How much greater is the sum of the first 50 counting numbers greater than the sum of the first 100 counting numbers? a. 110
    8·1 answer
  • What is the coefficient of the term 6/7xy <br><br><br><br> Plz help
    8·2 answers
  • Find m2GFT if mZGFT = 6x - 4,<br> mZTFE = 160°, and mZGFE = 44x + 4.
    6·1 answer
  • What is the domain of the function graphed below?
    15·1 answer
  • A door with width 4.20m has an arc as shown in the diagram. Find: a) the radius of the arc, to the nearest cm. b) the length of
    5·2 answers
  • Helppp plzzz I’m trying to pass!!!!
    13·1 answer
  • Please help <br><br>-3x= y<br>-9x - 5y = - 48
    8·1 answer
  • The coffee shop has 5 regular customers daily. On Saturday they have 6 times as many non-regular customers than on any given wee
    5·1 answer
  • rita swam 300 john swam 900 rodell swam 925 If the swimmers received $2 for every lap they swam, how much did each swimmer earn
    5·1 answer
  • Which letter has horizontal not vertical symmetry H, W, Y, E
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!