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
Naddik [55]
3 years ago
12

3x^+5x+2=0

Mathematics
2 answers:
Lady bird [3.3K]3 years ago
6 0

Answer:

  • See below

Step-by-step explanation:

<u>Given equation:</u>

  • 3x² + 5x + 2 = 0

<u>Factorize it in steps:</u>

  • 3x² + 5x + 2 = 0
  • 3x² + 3x + 2x + 2 = 0
  • 3x(x + 1) + 2(x + 1) = 0
  • (x + 1)(3x + 2) = 0

<u>The roots are:</u>

  • x + 1 = 0 ⇒ x = - 1
  • 3x + 2 = 0 ⇒ 3x = - 2 ⇒ x = - 2/3
Kryger [21]3 years ago
4 0

\\ \tt\hookrightarrow 3x^2+5x+2=0

  • Split the middle term

\\ \tt\hookrightarrow 3x^2+3x+2x+2=0

  • Take commons

\\ \tt\hookrightarrow 3x(x+1)+2(x+1)=0

\\ \tt\hookrightarrow (3x+2)(x+1)=0

\\ \tt\hookrightarrow x=\dfrac{-2}{3}\:or\:x=-1

You might be interested in
Marcus wants to use a model to determine the difference
grigory [225]

Electron transfer theory describes the parameters which control the rate at which an electron is transferred from one atom or molecule to another.

<h3>What was the basic principle of Marcus theory?</h3>
  • In theoretical chemistry, Marcus theory is a theory originally developed by Rudolph A. Marcus, starting in 1956, to explain the rates of electron transfer reactions – the rate at which an electron can move or jump from one chemical species.
  • Marcus' method (also referred to as Marcus's method and Method of Marcus) is a structural analysis method which was designed to design concrete slabs with rectangular, orthogonal shapes. It represents an adaptation of the strip method.
  • Marcus Hush theory (M-H theory) was developed in 1956 by Rudolph A. Marcus which explains the fundamentals of the redox/ electron transfer reactions in terms of the rate of jumping/moving an electron from oxidant species (electron donor) to the reductant (electron acceptor).
  • The "Marcus Inverted Region" (MIR) is that part of the function of rate constant versus free energy where a chemical reaction becomes slower as it becomes more exothermic.

We want to see how we can model the difference: -8 - 3 + 3

The correct option is D:

"add 3 positive counters and 3 negative counters"

We know that Marcus starts with 8 negative counters, corresponding to the first term in our difference.

Now, let's study the math of our expression.

-8 - 3 + 3

Remember that we can perform the operation in any order we want, so we can write this as:

-8 + (-3 + 3)

Notice that the thing inside the parentheses is equal to zero, so we have:

- 8 + (-3 + 3) = -8

So to not change the value, we add 3 and we subtract 3.

Now if we have 8 negative counters, and we want to add 3 positive counters and not change the value, then we also need to add 3 negative counters to "cancel" the 3 positive counters we added.

Then the correct option is D.

To learn more about Marcus refer to,

brainly.com/question/23140234

#SPJ1

8 0
1 year ago
A rectangle prism is shown below. What is the volume of the prism?
8_murik_8 [283]
I can help with the formula just do the math on a calculator you multiply length x width x height
8 0
3 years ago
Write a expression that is equivalent of 4+3(5+x)
stepladder [879]

Answer: 19 + 3x

Step-by-step explanation:

Given : 4 + 3(5+x)

expanding , we have

4 + 15 + 3x

= 19 + 3x

Therefore :

4 + 3 ( 5 + x ) = 19 + 3x

3 0
3 years ago
Find the value of x that makes m
Sindrei [870]

Answer:

X = 20

Step-by-step explanation:

Hope this helps! If you need the explanation, let me know. Pls give brainliest!

5 0
2 years ago
Read 2 more answers
Which choice gives the radius of the circle represented by the equation? x squared y squared 225
myrzilka [38]
X^2 + y^2 = 225

The radius is 15.
ANswer is C
8 0
3 years ago
Other questions:
  • An 8 foot length of 4 inch wide crown molding costs $16. How much will it cost to buy 40 feet of crown molding?
    12·1 answer
  • What are two lines in the same plane that intersect at right angles?
    6·2 answers
  • In a triangle, the largest angle is 3 less than twice the smallest angle. The middle-sized angle is 7 more than the smallest ang
    5·1 answer
  • Damon buys lumber worth $562. He gets 20% contractor discount. The sales tax is 6%. his credit card gives him 2% off. How much d
    9·1 answer
  • 5 groups of 2 hundredths =
    12·1 answer
  • Suppose that each time Giannis Antetokounmpo shoots a free throw, he has a 3/4 probability of success. If Giannis shoots three f
    8·1 answer
  • Customers arrive at a bank at a rate of 12/hour. It takes the clerk on average 4 minutes to help each customer. a. What is the a
    5·1 answer
  • I dont understand this
    10·2 answers
  • PLEASE HELP AND EXPLAIN!!
    13·1 answer
  • Complete the coordinate proof.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!