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
LenaWriter [7]
3 years ago
12

Limited time . 10 points

Mathematics
1 answer:
AfilCa [17]3 years ago
8 0

Answer:

Therefore the value of x is

x=1\pm\sqrt{19}i

Step-by-step explanation:

Given:

x^{2}+20=2x which is

x^{2}-2x+20=0

To Find:

x = ? using Quadratic Formula

Solution:

For a Quadratic Equation ax² + bx + c = 0 , Formula Method is given as

x=\dfrac{-b\pm\sqrt{b^{2}-4ac}}{2a}

On Comparing with above we get

a=1\\b=-2\\c=20

Substituting a , b , c in Formula method we get

x=\dfrac{-(-2)\pm\sqrt{(-2)^{2}-4(1)(20)}}{2\times 1}\\\\x=\dfrac{2\pm\sqrt{-76}}{2}\\\\x=\dfrac{2\pm2\sqrt{19}i}{2}\\Dividing\ by\ 2\ we\ get\\\\x=1 \pm\sqrt{19}i

Therefore the value of x is

x=1\pm\sqrt{19}i

You might be interested in
Consider the equation below. x2 − y2 + z2 − 6x − 2y − 2z + 9 = 0 Reduce the equation to one of the standard forms. Classify the
pogonyaev

Answer:

See attachment for detailed answer.

Step-by-step explanation:

3 0
3 years ago
Consider x^4+8xy^2=-135 find dy/dt when x=3, y=-3 and dx/dt=2
-BARSIC- [3]

Answer:

0.3224 listen in class

4 0
3 years ago
A pentagon has 3 congruent sides and 2 other congruent sides. The perimeter of the pentagon is 36 centimeters. The three long co
zvonat [6]
The answer is c. ...
6 0
2 years ago
Read 2 more answers
I need help with b and c please and thank you!!
Vlada [557]

Answer:

rjdjdj shiejd shsuisis shusisos

3 0
2 years ago
Can somebody plz help answer the rest of these questions correctly (only if u done this before) thx :3
kodGreya [7K]

Answer:

9. 16.34

10. 51.84

11. 20.11

12. 76.03

13. 64.09

just look up circumference of a circle and you should be able to put the radius in the first thing that pops up :)

4 0
2 years ago
Other questions:
  • A recent report shows that 62% of people are interested in black holes. If this number is down from the previous year by 8%, wha
    11·1 answer
  • Which is a good comparison of the estimated sum and the actual sum of 7 7\8 + 2 11\12
    15·2 answers
  • Write a real-world problem that can be represented by the inequality r + 32 (greater then or equal to sign) 56
    8·1 answer
  • Describe the number of solutions for the equation 3(x - 3) = 3x
    9·2 answers
  • Photo is above. Show work thank you. Questions at bottom.
    9·1 answer
  • Can someone please help me on this ????
    14·1 answer
  • Help i don’t know what to do here!
    13·1 answer
  • What is the scale factor and center of dilation for this problem
    7·1 answer
  • A savings account increases from ​$150 to ​$159. What is the percent increase of the savings​ account?
    15·1 answer
  • What is the end behavior of h(x)=-5x^4+13x/x^3
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!