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
Bas_tet [7]
3 years ago
10

How do i solve 3x² - 8x + 2 = 0 using quadratic formula?

Mathematics
2 answers:
DENIUS [597]3 years ago
7 0
3x^2 - 8x + 2 = 0\\ \\a=3 , \ \ b=-8 , \ \ c=2 \\ \\x_{1}=\frac{-b-\sqrt{b^2-4ac}}{2a} =\frac{8-\sqrt{ (-8)^2-4 \cdot 3\cdot 2}}{2 \cdot 3} =\frac{8-\sqrt{ 64-24 }}{6} =\\ \\ =\frac{8-\sqrt{40 }}{6} = \frac{ 8-\sqrt{4\cdot 10 } }{6} = \frac{ 8-2\sqrt{ 10 }}{6} = \frac{2 (4-\sqrt{ 10 })}{6} = \frac{ 4-\sqrt{ 10 } }{3}

x_{2}=\frac{-b+\sqrt{b^2-4ac}}{2a} =\frac{8+\sqrt{ (-8)^2-4 \cdot 3\cdot 2}}{2 \cdot 3} = \frac{ 4+\sqrt{ 10 } }{3}



Step2247 [10]3 years ago
5 0

x =  \frac{-b +/-  \sqrt{b^2 - 4ac}}{2a}

<span>x =  \frac{-(-8) +/-  \sqrt{(-8)^2 - 4(3)(2)}}{2(3)}</span>

<span>x =  \frac{8 +/-  \sqrt{64 - 24}}{6}</span>

<span>x =  \frac{8 +/-  \sqrt{40}}{6}</span>

<span>x = \frac{8 +/- 6.31}{6}</span>

<span>x = \frac{14.32}{6}          x ≈ 2.39</span>

<span>x = \frac{1.68}{6}            x ≈ 0.28</span>

You might be interested in
Which number line shows the solution set for StartAbsoluteValue d EndAbsoluteValue greater-than 3?
Liono4ka [1.6K]

Answer:

Whats the question

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the probability of getting either a three or a jack when drawing a single card from a deck of 52​ cards?
Elden [556K]
8/52 because there are 4 3’s in a deck and 4 jacks in a deck
4 0
3 years ago
Solve for x please help
Fed [463]

Answer:

x = 5

Step-by-step explanation:

By remote exterior angle theorem:

(6 + 25x) \degree = (18x - 3)\degree  + 44\degree  \\ 6 + 25x = 18x - 3 + 44 \\ 25x - 18x = 41 - 6 \\ 7x = 35 \\ x =  \frac{35}{7}  \\ \huge \red{ \boxed{ x = 5}}

3 0
3 years ago
Nancy decides to roll a Die 3 times what is the possibility she would get all even numbers
earnstyle [38]
The probability of getting an even number is 1/2 on each throw. So getting an even number on all three throws is 1/23=1/8.
7 0
3 years ago
What is the slope of the line that contains the points (-2, 7) and (2, 3)?
AleksAgata [21]

Answer:

-1

Step-by-step explanation:

We can use the slope formula to find the slope

m = ( y2-y1)/(x2-x1)

    = ( 3-7)/(2- -2)

   = (3-7)/(2+2)

    = -4/4

   = -1

6 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP!!!!
    8·1 answer
  • If 12 + 3 = 15, what other addition fact and what two subtraction facts
    9·1 answer
  • In circle O, central angle AOB measures StartFraction pi Over 3 EndFraction radians What is the length of arc AB? 6π cm 12π cm 1
    5·2 answers
  • Write a multiplication problem in which the product is between . 05 and . 75.
    15·1 answer
  • Find the value of x​
    9·1 answer
  • On her first two quizzes Barbara averaged nine correct answers on the next 3 quizzes she averaged 10 correct answers what decima
    7·1 answer
  • Which expression shows the result of applying the distributive property to 12(5y+4)?
    12·1 answer
  • Please help I will give brainliest <br> A.3<br> B.6<br> C. 9<br> D. 12
    7·2 answers
  • The length of a rectangle is 7 centimeters greater than the width.
    5·1 answer
  • HELPP MEEE<br> BC I DIDNT POST MY PICCC
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!