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
aev [14]
3 years ago
13

2x^2-3x-2=0 zero product property

Mathematics
2 answers:
DIA [1.3K]3 years ago
6 0
2x^2-3x-2=0 \\
2x^2-4x+x-2=0 \\
2x(x-2)+1(x-2)=0 \\
(2x+1)(x-2)=0 \\
2x+1=0 \ \lor \ x-2=0 \\
2x=-1 \ \lor \ x=2 \\
x=-\frac{1}{2} \ \lor \ x=2 \\
\boxed{x=-\frac{1}{2} \hbox{ or } x=2}
sergey [27]3 years ago
6 0
2x² - 3x - 2 = 0
x = <u>-(-3) +/- √((-3)² - 4(2)(-2))</u>
                     2(2)
x = <u>3 +/- √(9 + 16)</u>
                 4
x = <u>3 +/- √(25)
</u>             4<u>
</u>x = <u>3 +/- 5
</u>          4
x = <u>3 + 5</u>  or  x = <u>3 - 5</u>
         4                   4
x = <u>8</u>             x = <u>-2</u>
      4                    4
x = 2             x = ⁻¹/₂
<u />
You might be interested in
Please someone help me: Complete the reasons for the proof.
dimulka [17.4K]

Step-by-step explanation:

1) given

2) 2 non - common sides in 1 ray

3) supplemental

5) opposite angles are congruent

5 0
3 years ago
Read 2 more answers
How long an umbrella will fit in the bottom of a suitcase 1.5 feet by 2.5 feet
IRINA_888 [86]

Answer:

pointing towards the top

Step-by-step explanation:

1.5 feet long 2.5 feet wide the suitcase is so straight

HOPE OT HELPS

7 0
3 years ago
What does negative 2 over 7 &gt; −4 indicate about the position of negative 2 over 7 and −4 on the number line?
jeyben [28]
-4/7 > -2

If it is greater it goes to the right, and if it is less it goes to the left.

-4/6 is located to the right of -2
6 0
3 years ago
FUNCTION OR NOT /// ALGEBRA I
guapka [62]

Answer:

First figure: The graph is not a function

Second figure:

Statement 1: It is false

Statement 2: It is false

Statement 3: It is right

Step-by-step explanation:

First graph is not a function.

The domain of it is ⇒ 0 ≤ x < 3 , 3 < x ≤ 6 , 6 ≤ x < 9

From the domain ⇒ x = 6 has two corresponding values of y⇒ 3 and 4

∴ It is not a function because every x must have one and only one

  corresponding value of y

Second figure

{(3 , 6) , (4 , 6) , (5 , 7) , (6 , 8) , (7 , 10) , (8 , 10)}

<u>Statement 1</u>: It is false because we use x-value to check function or not.

The relation is a function because every x-value has one corresponding

y-value

<u>Statement 2</u>: It is false because 3 ≤ x ≤ 8 means we will use for x all real numbers from 3 to 8 not only the integers 3 , 4 , 5 , 6, ,7 , 8

The domain of this function is { 3 , 4 , 5 , 6 , 7 , 8 }

<u>Statement 3</u>: It is right because the range is the y-value and all the y-value in the function are 6 , 7 , 8 , 10

5 0
3 years ago
17.
IrinaVladis [17]

Answer:

$32 + $0.25x < $50

Step-by-step explanation:

1.he buy a backpack for $32

2. he buys x amount of pencils. Each pencil cost 0.25. ($0.25x)

3. all of that is less than(<) $50

4 0
2 years ago
Other questions:
  • Can you explain how you would convert 4 m to millimeters?
    12·1 answer
  • Lisa has a home-based business making and selling scented soaps. She intially spent $72 to purchase soap-making equipment, and t
    15·1 answer
  • Kerri correctly calculated the distance between point S (–3428) and point T (286) on a number line.
    6·1 answer
  • Using the segment addition postulate, which is true? A number line going from negative 9 to positive 9. A closed circle appears
    14·1 answer
  • A major DVD rental chain is considering opening a new store in an area that currently does not have any such stores. The chain w
    10·1 answer
  • Find the perimeter of ABCD
    12·1 answer
  • Hey guys again please I suck at math
    12·2 answers
  • What sentence represents the number of points in the problem below?
    13·1 answer
  • Can someone tell me the answer for this please
    10·1 answer
  • Wyatt invests $1200 into an account that earns 6.2% simple interest for 4 years. He does not make any other deposits or withdraw
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!