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
maw [93]
3 years ago
9

Find the solution set 2x^2 -2x -4 =0please use a comma to separate your answer.

Mathematics
1 answer:
mariarad [96]3 years ago
7 0

Answer:

2,-1

Step-by-step explanation:

2x^2 -2x -4 =0

Factor out a 2

2(x^2 -x-2) =0

What 2 number multiply to -2 and add to -1

-2*1 = -2

-2 +1 = -1

2(x-2) (x+1) =0

Using the zero product property

x-2 = 0               x+1 = 0

x-2+2=0+2       x+1-1=0-1

x=2                   x=-1

You might be interested in
Evaluate the expression. If necessary, round to the nearest hundredth. ln e Undefined 1 0
Luba_88 [7]
What is the expression
7 0
3 years ago
Read 2 more answers
What’s the answer ? I’m stuck
Law Incorporation [45]
Angle M equals 45°
Angle N equals 15°
3 0
3 years ago
Eduardo thinks of a number between 1 and 20 that has exactly 5 factors. What number is he thinking of?
fredd [130]
16, with the factors– 1, 2, 4, 8, and 16 itself
4 0
3 years ago
If y varies directly as x, and y = 25 when x = 5, find y when x = 25.
zimovet [89]
A.125
Because to get from 5 to 25 you need to multiply by 5 so 25 times five equals 125
6 0
3 years ago
Can someone help me with this pls ?
Eduardwww [97]

Answer:

D. The cost of the pizza with one topping costs $6.

5 0
3 years ago
Other questions:
  • Free points: this is because of all the kindness I have seen on brainly:
    11·2 answers
  • Find the value of the variable y, for which:
    9·1 answer
  • 4 The number of laps Jessica runs around the track is proportional to the time she
    9·1 answer
  • A fish tank has the shape of a rectangular prism. It has a length of 2 1/4 meters, width of 7/8 meters, and a height of 1 1/2 me
    6·2 answers
  • The figure below shows the design of a truss to support the weight of a roof. In this truss design, ∠A⩭∠D and ĀF⩭DF.
    13·1 answer
  • Help plz I really need the help​
    15·1 answer
  • Question 8 (4 points) Find the values of x and y if NO = x + 2y, MO = 3x, PQ = 6x + 4, and OQ = 2y + 4.
    12·1 answer
  • 3=2 1/6 + ____<br><br><br> Please help or explain I’m confused!
    9·2 answers
  • 5 &lt; x + 10 <br> what does x equal??
    14·2 answers
  • Solve for y.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!