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
Semmy [17]
2 years ago
10

X2 - 2x + 2 = 0

Mathematics
1 answer:
seraphim [82]2 years ago
6 0

Answer:

Step-by-step explanation:

Let's solve x^2 - 2x + 2 = 0 using "completing the square:"

1.  Take the coefficient of x:  It is -2.

2.  Halve this, obtaining -1.

3.  Square this result, obtaining 1.

4.  Add 1, and then subtract 1, between -2x + 2:

    x^2 - 2x + 1 - 1 + 2 = 0

5.  Rewrite x^2 - 2x + 1 + 1 = 0 beginning with the square of a binomial

    (x - 1)^2 + 1 = 0, or (x - 1)^2 = -1

6.  Take the square root of both sides, obtaining x - 1 = ±i, or x = 1 ±i

7.  Write out the roots:  they are x = 1 + i and x = 1 - i (two complex, different roots).  No real roots, so the last command of this question is irrelevant.  The graph never touches the x-axis; the graph is in Quadrants I and II and is that of a parabola that opens up.

You might be interested in
CAN SOMEONE PLEASE HELP WITH QUESTIONS 3 THROUGH 11?? YOU DON’T EVEN HAVE TO DO ALL OF THEM JUST THE ONES U FEEL LIKE DOING (ILL
adell [148]

Answer:

3. 3/2

4. -1/3

5. -3.5

6. -6and 2/3

7. -18and 13/24

8. 1/18

9.-2.6

10.-1.83

11. 14.963

Step-by-step explanation:

HOPE THIS HELPS, if not see me in the comments

BRANILIEST PLZZZ

6 0
2 years ago
What is 2 2/3×3 1/4 as a fraction form
fgiga [73]
The fraction form is 26/3 or 8 2/3
8 0
2 years ago
1. x² + 2xy – 7 xy + 4y?<br>Input your answer here:​
viktelen [127]

collect the like terms:

Solution: x^2-5xy+4y

P.S

get the photo math app. :)

Hope that helps.

6 0
3 years ago
If anyone Answer this question with POLITICALLY CORRECT answer I'll give you 25+ Points
Tresset [83]

Answer:

\sqrt[4]{x^5}

Step-by-step explanation:

A fraction exponent converts into a radical. The denominator is the index of the radical (farthest left number) and the numerator is the exponent of the base inside (the farthest right number). The base of the fraction exponent is the base number in green. To write this expression, simply the exponents into one exponent and one base.

x^{\frac{3}{4}}x^{\frac{1}{2} } =x^{\frac{3}{4}}x^{\frac{2}{4} } =x^{\frac{3+2}{4}} =x^{\frac{5}{4}}

Now convert to the radical.

x^{\frac{5}{4}} = \sqrt[4]{x^5}

8 0
3 years ago
You roll a number cube numbered from 1 to 6. What is the probability that the number is a 3? (Answers are rounded to the nearest
labwork [276]

Answer:

1/6

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Sweaters already on sale for 30% off the regular price cost $28 when purchased with a promotional coupon that allows an addition
    13·1 answer
  • Write 2.346 as a percent to the nearest tenth of a percent
    11·1 answer
  • 1-6 HELP PLEASE!! I DONT UNDERSTAND!!!
    9·1 answer
  • Please help due tommo
    14·1 answer
  • Twenty nine cans were arranged on 4 shelves as evenly as possible. How many shelves had exactly 7 cans
    6·2 answers
  • How do you work out this problem using completing the square x2 - 4x - 80 = 0
    5·2 answers
  • Is the point (3, 4) a solution to the linear equation 5x - 9y = 32?
    5·2 answers
  • Plz help will be marked BRAINLIEST!!<br> Thanks man!
    9·2 answers
  • What are the coordinates of point p?
    6·2 answers
  • A group of friends were working on a student film that had a budget of $1300. They used $546 of their budget on props. What perc
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!