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
shepuryov [24]
4 years ago
7

3x^2-x-2=0 Show all work please

Mathematics
1 answer:
Tanya [424]4 years ago
3 0

Answer:

\large\boxed{x=-\dfrac{2}{3}\ or\ x=1}

Step-by-step explanation:

3x^2-x-2=0\\\\3x^2+2x-3x-2=0\\\\x(3x+2)-1(3x+2)=0\\\\(3x+2)(x-1)=0\iff3x+2=0\ \vee\ x-1=0\\\\3x+2=0\qquad\text{subtract 2 from both sides}\\3x=-2\qquad\text{divide both sides by 3}\\x=-\dfrac{2}{3}\\\\x-1=0\qquad\text{add 1 to both sides}\\x=1

You might be interested in
Use the discriminant to determine how many real number solutions exist for the quadratic equations -4j+3j-28=0
aleksandr82 [10.1K]
<span>the correct equation is
- 4j² + 3j - 28 =0

 ax² + bx + c,
 a = -4, b=3  c =- 28.
The discriminent D = b² - 4.a.cD = 3² - 4(-4)(-28)D = -439 
If D ≥ 0 there are either 2 roots or one double if = 0)if D< 0, there are no real roots (but 2 imaginary roots)Since D < 0, then there is no real roots
 The answer there is no real roots</span>
8 0
4 years ago
What is the decimal equivalent for 139%
laiz [17]

Answer: 1.39

Step-by-step explanation:

Hope it helps! Mark me brainliest.

7 0
3 years ago
If q/18 = 5 what does q = to
qaws [65]

Answer:

Q= 90

Step-by-step explanation:

To do this problem you need to get q by itself and to do that you would move the 18 over

When you move the 18 over however you need to multiply and you will get 90

When ever you want to get a variable by itself always remember to switch the sign so if it was positive then switch it to negative and vice versa. It will also apply to multiplication and division just like this one

7 0
3 years ago
Read 2 more answers
About how many people out of 350 would likely wear blue jeans?
skelet666 [1.2K]

Answer:84

Step-by-step explanation:

Set up a proportion

36/150 =x/350

Cross multiply then divide

4 0
4 years ago
Read 2 more answers
4x-2= -14<br> what value of x makes 4x-2= -14 true?
ad-work [718]

-6

<u>4 x (-6)</u> - 2

<u>-16 - 2</u>

=-14

6 0
4 years ago
Read 2 more answers
Other questions:
  • The hornet huge wheel is an observational wheel circumference of 400 meters and on a stand that is 15 meters that travel at a sp
    5·1 answer
  • 3×16 using partial products
    12·2 answers
  • Please help!! For each sum or product, determine whether the result is a rational number or an irrational number. Then choose th
    10·1 answer
  • PLEASE HELP WILL MAKE BRAINLIEST
    9·1 answer
  • Express 90 as the product of its prime factors,<br><br> Write the prime factors in ascending order
    7·1 answer
  • Simplify negative 9 over 6 divided by 3 over negative 2. . (5 points) a 3 b 1 c −1 d −3
    5·1 answer
  • What is perpendicular to y=1/3x+6 and passes through the point (2,-3)
    7·1 answer
  • Una comercializadora de café necesita construir una bodega con forma de cubo. La capacidad de la bodega debe ser de 216 metros c
    6·1 answer
  • Subtract 2xy from 6xy<br>​
    11·2 answers
  • Factor z3 + 2z2 - 9z - 18. (z - 3)(z + 3)(z + 2) (z 2 + 9)(z - 2) (z 2 + 2)(z - 9)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!