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
Taya2010 [7]
2 years ago
9

Solve 3x² + 4x = 2. (2 points)

Mathematics
1 answer:
uysha [10]2 years ago
6 0

Answer:

Step-by-step explanation:

As it is a second order equation, it means that it has two possible answers and they are x_1 and x_2.

The famous quadratic formula for solving any second order equation is the following:

x_{1} = \frac{-b + \sqrt{b^2 - 4 ac}}{2a}\\x_{2}=\frac{-b - \sqrt{b^2 - 4 ac}}{2a}

Where a is the coefficient of x^2, b is the coefficient of x, and c is the free term. In other words,

a = 3\\b=4\\c=-2

as the equation should be in the following form:

a x^2 + bx+c = 0

Therefore the possible answer should be the following,

\frac{-4 + \sqrt{4^2 - 4*3*(-2)}}{2*3}=\frac{-4 +\sqrt{16 + 24}}{6} =\frac{-4 + \sqrt{40}}{6}=\\ \frac{-4 + \sqrt{4*10}}{6} = \frac{-4 + 2\sqrt{10}}{6}\frac{2*(-2 + \sqrt{10})}{2*3} = \frac{-2 + \sqrt{10}}{3}

by dividing the numerator and denominator by 2, we can deduce the following,

You might be interested in
!!!!!!!!!!! NEEEEeD HELp ASAP
marin [14]

Answer:

A = π(P)

I can't give a numeral answer because neither P nor A is defined.

4 0
3 years ago
Read 2 more answers
Need help!!! I don't understand it..
JulsSmile [24]
Okay so every triangle will have 3 angles that add to 180 degrees. You are given that A=65 which means that B + C will have to add to 115. You are given that B= (3x-10) and C=2x, plug this into B+C=115. So
3x-10+2x=115, isolate x, 5x=125, divide both sides by 5 and you get that x=25. This makes B=65, and C=50. Just to check, if you add these together you get 180 degrees.
6 0
2 years ago
An office printer prints 25 photos in 12.5 minutes. A home printer prints 15 photos in 6 minutes. Which printer is faster?
aev [14]
Office printer is faster
5 0
3 years ago
-3+3x=-2(x+1)<br> the 2 is a negative<br> please break it down
Veronika [31]
-3+3x=-2(x+1) First: I will get rid of the bracket:


-3+3x=-2x-2

Now, all the x goes to the left side, all the numbers without x to the right side:


3x+2x=-2+3

we add up"

5x=1

divide by 5:

x= \frac{1}{5}

7 0
3 years ago
Read 2 more answers
Please solve for both it’s due tomorrow, easy points !
PSYCHO15rus [73]

Answer:

13. 0.145, 0.18, 0.206, 0.315

14. 1.75 times

<u><em>WARNING</em></u>

<em>im not completely sure sooo, Im really really sorry if you get it wrong</em>

8 0
2 years ago
Other questions:
  • I need help with #8 this will give you 11 pts
    15·2 answers
  • MATH HELP PLEASE!!!!! 15 POINTS<br><br> WILL MARK BRAINLIEST PLEASE ANSWER THESE 5 QUESTIONS BELOW
    8·2 answers
  • Four friends went on a trip and spent $51.20 on gas. Jackie brought $12.25. Will she be able to pay her share of gas if they spl
    11·2 answers
  • For the multiple regression model Y with hat on top equals 40 plus 15 X subscript 1 minus 10 X subscript 2 plus 5 X subscript 3,
    11·1 answer
  • Mr.marichal has quarters ,dimes,and pennies in a jar.he has twice as many quarters as oennies.he also has 5 more dimes than penn
    15·1 answer
  • Please answer this correctly without making mistakes
    10·1 answer
  • Find the square root. 7.29 ​
    13·1 answer
  • Tell what whole number you can substitute for x in the following list so the numbers are ordered from least to greatest.
    15·2 answers
  • Keoni has 4 boardshorts and 6 t-shirts. How many days can he wear a different combination of boardshorts and t-shirts? *
    11·1 answer
  • I am giving Branly the the first one to tell me answer
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!