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
Anettt [7]
3 years ago
14

Use the zero product property to find the solutions to the equation 2x2 + x - 1 = 2

Mathematics
1 answer:
Firdavs [7]3 years ago
8 0

Answer:

C

Step-by-step explanation:

Given

2x² + x - 1 = 2 ( subtract 2 from both sides )

2x² + x - 3 = 0

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 2 × - 3 = - 6 and sum = + 1

The factors are - 2 and + 3

Use these factors to split the x- term

2x² - 2x + 3x - 3 = 0 ( factor the first/second and third/fourth terms )

2x(x - 1) + 3(x - 1) = 0 ← factor out (x - 1) from each term

(x - 1)(2x + 3) = 0

Equate each factor to zero and solve for x

x - 1 = 0 ⇒ x = 1

2x + 3 = 0 ⇒ 2x = - 3 ⇒ x = - \frac{3}{2}

You might be interested in
5 people take 12 hours to build a wall.<br> How long would it take 3 people to build the wall?
mafiozo [28]

Step-by-step explanation:

5p=12h

3p=?(h)

12×3=5h

36=5h

h=36/5

h=7.2 hours

8 0
3 years ago
What is the variable equal to?<br> t • 7 = 63<br> t = 12<br> t = 8<br> t = 9<br> t = 441
iVinArrow [24]

Answer:

The variable t is equal to 9.

Step-by-step explanation:

We are given t • 7 = 63.  To solve this for t, we divide both sides of this equation by 7, obtaining:

t = 63/7 = 9

The variable t is equal to 9.

8 0
2 years ago
98÷5194<br>please help me out
Naya [18.7K]
When you divide 98 by 5194, you get 0.01886 to be almost exact
6 0
3 years ago
Read 2 more answers
There is a square. the square's length is 4. what is the area?
san4es73 [151]
Area of square = a^2 = 4^2 = 4 x 4 = 16

answer
16
7 0
3 years ago
Read 2 more answers
What is the number sentence of 34 using addition
EleoNora [17]
If You mean A sum to write here's one :
31+3
5 0
3 years ago
Read 2 more answers
Other questions:
  • What are the coordinates of the point (2, −3) after a counterclockwise rotation of 90° about the origin?
    14·1 answer
  • Qrb/501 ​find the range for the scores: 13, 23, 60, 46, 53, 75.
    6·1 answer
  • Solve the following problem, supporting your work with a two-column proof.
    12·1 answer
  • Please help! what equation best models this data?
    10·1 answer
  • As a member of a music club you can order CDs for $14.99 each the music club also charges $4.99 for each shipment the expression
    12·1 answer
  • Which are the numbers that are common multiples of 6 and 8. 12 18 24 30 40 48
    13·1 answer
  • OKAY BRAINLY 3 MORE MATH QUESTIONS AND THEN IM OUT OF YOUR HAIR FOR TONIGHT AND YOU CAN STOP SENDING ME WARNINGS!!!!1
    5·1 answer
  • 이게워야? What is that? Tell me now!!!
    7·2 answers
  • What is the value of x?
    9·2 answers
  • Can u plz help me i have 2 more to day after this one
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!