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
makvit [3.9K]
3 years ago
10

Solve this quadratic equation. 6x2 - 2x = 7

Mathematics
1 answer:
rjkz [21]3 years ago
5 0

Answer:

x₁ = (1 + √43)/6

x₂ = (1 - √43)/6

Step-by-step explanation:

6x² - 2x = 7

6x² - 2x - 7 = 0

Formula

ax² + bx + c = 0

a = 6 ; b = - 2 ; c = - 7

x₁/₂ = [-b ± √(b²- 4ac)]/2a

x₁/₂ = (2 ± √4 + 4×6×-7)/12

x₁/₂ = (2 ± √172)/12

x₁/₂ = (2 ± 2√43)/12

x₁/₂ = 2(1 ± √43)/12

x₁/₂ = (1 ± √43)/6

x₁ = (1 + √43)/6

x₂ = (1 - √43)/6

You might be interested in
74,181,467 in scientific Notation
muminat

Answer:

7.4181467 × 10∧7

Step-by-step explanation:

7 0
3 years ago
15% of 20 is what number?
Rina8888 [55]

Answer:

<h2><em><u>Brainliest plz</u></em></h2>

Step-by-step explanation:

20 x 15%

is equal too...

20 x 0.15

and that is equal to

...

3

8 0
3 years ago
Gina received a 30% discount on a new
gizmo_the_mogwai [7]

Answer:

64.94

Step-by-step explanation:

(49.95•30%)+49.95

3 0
3 years ago
Read 2 more answers
I need help on this
Tanya [424]

Answer:

x = 20

Step-by-step explanation:

Please see the step-by-step solution in the picture attached below.

I hope this answer will help you. Have a nice day !

4 0
3 years ago
Jessie wants to buy three tickets for a concert. she has earned $135 and each tickey costs $50. she borrows the rest of the mone
dybincka [34]

Answer: In explanation

Step-by-step explanation:

1. 135 - 50x

2. $15

3. $0

I hope this helped!

3 0
1 year ago
Other questions:
  • If four times a whole number is subtracted from three times the square of the number, the result 15 is obtained. Find the number
    12·1 answer
  • Solve for x: -x^2+5x+6=0
    13·1 answer
  • What is 6.84 x 10-7 written as a decimal number?
    14·1 answer
  • PLZ HELP A biker travelling at his usual speed can go from his house to work in 4 hours. When the weather is bad, he travels 6 m
    8·2 answers
  • What two numbers multiply to 30 and add to be 5
    11·1 answer
  • If 7 units equals to 98 liters, how many liters will 15 units have?
    9·2 answers
  • Andre and han are moving boxes. Andre can move 4 boxes every half hour. Han can move 5 boxes every half hour. How long will it t
    14·1 answer
  • In the figure two semicircles are drawn at the centre of the large semicircle
    8·2 answers
  • Find the ninth term of the sequence<br> sprt(5), sprt(10), 2 sprt(5)​
    10·2 answers
  • Given circle o, what is the length of arc AB if m AOB =40° ?<br> Radius is 9
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!