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
If a right triangle has a hypotenuse of length 20 units and one leg of length 16 units, find the length of the other leg. A. 12
xxTIMURxx [149]

Answer:

12

Step-by-step explanation:

Use the Pythagorean theorem which is a^2 + b^2 = c^2

c is hypotenuse and a and b are the legs

we need to find a^2 so

a^2 + 16^2 = 20^2

a^22 + 256 = 400

then subtract 256 from 400

a^2 = 144

square root 144

= 12

5 0
3 years ago
Read 2 more answers
Given two angles that measure 50 degrees and 90 degrees and a side that measures 4 feet​
kupik [55]

What is the question? Please specific!

7 0
3 years ago
Read 2 more answers
The scatter plot shows the number of hats and scarves each knitter sold at a knitting show.
SOVA2 [1]

I believe your answer should be 5!

4 0
3 years ago
Read 2 more answers
On Monday, a bakery sold 67 dozen cookies. How many total cookies did the bakery sell?​
gulaghasi [49]

Answer:

804

Step-by-step explanation:

dozen means 12

67 times 12 is 804

8 0
1 year ago
Read 2 more answers
Find the value of each variable in each parallelogram.
svp [43]

Answer:

a=109° b=71°

Step-by-step explanation:

All the angles in a parallelogram add up to 360. There are a few rules:

The opposite angles are congruent.

Consecutive angles are congruent.

We can apply these rules here.

71 is opposite to b

and a is consecutive to 71 so we can put together these equations.

180=71+a

71=b

we can simplify to get the answers

the end

4 0
3 years ago
Other questions:
  • Can someone show me how to find the product of 3square-root(4) * square-root(3)?
    15·1 answer
  • Help on these plzzzzz it is really hard
    14·1 answer
  • How many individual squares does a standard chess board have?
    8·1 answer
  • The driver of a 810.0 kg car decides to double the speed from 23.6 m/s to 47.2 m/s. What effect would this have on the amount of
    6·1 answer
  • Find the vertex of the given quadratic function.
    11·1 answer
  • Two friends play a game to see if one can spot the true statements when the other gives them a list of truths and lies mixed tog
    8·1 answer
  • What are the lengths of sides A and B of a right triangle if the hypotenuse is equal to 1.2 cm and the interior angles are 60 de
    10·1 answer
  • Raj draws an obtuse triangle.
    12·1 answer
  • What value of x solves the equation 56/x = 8 (Trigonometry)<br><br> (In image)
    6·2 answers
  • 7.5 x 7.5 x (6.084−5.44)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!