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
anyanavicka [17]
3 years ago
13

Factor the expression over the complex numbers. x2+20

Mathematics
2 answers:
vovangra [49]3 years ago
6 0
X²+20=0
x=±√(-80)/2
x=±4i√5/2=2i√5

factorised it is then
(x+2i√5)*(x-2i√5)
Blababa [14]3 years ago
4 0

Answer:

x^2+20=(x-2\sqrt{5}i)(x+2\sqrt{5}i)  

Step-by-step explanation:

Given : Expression x^2+20

To find : Factor the expression over the complex numbers ?

Solution :

To factor we equate the expression to zero.

x^2+20=0

Subtract 20 both side,

x^2+20-20=-20

x^2=-20

Taking root both side,

x=\sqrt{-20}

x=\pm 2\sqrt{5}i

The factor of the expression is x^2+20=(x-2\sqrt{5}i)(x+2\sqrt{5}i)

You might be interested in
<img src="https://tex.z-dn.net/?f=f%20-%20354%20%3D%201221" id="TexFormula1" title="f - 354 = 1221" alt="f - 354 = 1221" align="
alukav5142 [94]

f-354=1221           <em>add 354 to both sides</em>

f+354-354=1221+354\\\\\boxed{f=1,575}\to\boxed{D.}

6 0
3 years ago
A baby elephant that is 4 ft tall casts a
Kazeer [188]

Answer:

15 ft

Step-by-step explanation:

10/4

=2.5

6*2.5

=15 ft

PLS GIVE BRAINLIEST

7 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!!!
kolbaska11 [484]

Answer:

41

Step-by-step explanation:

130-89= other angle whic is 41

6 0
3 years ago
Helpp my grades are almost dueeeeeeee,,, but anyway hows yall dayyy?
tekilochka [14]
C is the. Answer as you multiply by -1/3
3 0
2 years ago
Read 2 more answers
A. 17 <br> B. 12<br> C. 10 <br> D. 14
Sonbull [250]
It might be A i think
3 0
3 years ago
Read 2 more answers
Other questions:
  • A family spent $86 per week for food. This was 20 percent of its weekly outcome. What was its weekly outcome?
    11·2 answers
  • -9x - 33 + 17 - 19x simplify
    11·2 answers
  • Suki buys dog food in large 13.4-pound bags. She feeds her dog 0.3 pound of food twice a day. How many full days will the bag of
    5·1 answer
  • Rewrite the equation 3x+4y=20 in slope intercept form
    8·1 answer
  • Please tell me the answer! I'm crying in confusion! :(
    13·2 answers
  • A student used formulas to make tables for f(x) and g(x). If the student wants to correctly illustrate that a quantity increasin
    12·1 answer
  • Which of the following decimals is greater than 0.66 but less than 0.68?circle all that apply.
    15·2 answers
  • Simplify (5^-2)^4. Plsss help
    10·1 answer
  • PLEASE HELP ME VERY EASY QUESTION I WILL MARK AS BRAINLIEST
    15·2 answers
  • 1/2 ÷8 = <br><br> this on studyisland
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!