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
Illusion [34]
3 years ago
12

Find the roots of the equation x^3-3x^2+x+5

Mathematics
1 answer:
leonid [27]3 years ago
5 0
First observe that x=-1 is a root of the equation. Use long division to divide x^3-3x^2+x+5 by x+1, we find that (x^3-3x^2+x+5)/(x+1)=(x^2-4x+5). Now we need to find the roots of x^2-4x+5.
x^2-4x+5=0, 
x^2-4x+4=-1,
(x-2)^2=i,
x-2=i or -1,
x=2+i or 2-i. 
The three roots are 2+i, 2-i, -1.
You might be interested in
Pls help me!!!!!!!!!!!!!!
professor190 [17]

Answer:

H

Step-by-step explanation:

To find purple, you divide 162 by 3 as there are 3 people who like red for every one person who like purple. To find blue, you need to divide 162 by 3, which is 54, and then multiply it by 9 because there were 9 people who like blue for every person that liked purple.

7 0
3 years ago
Plz help me answer this!!!
larisa86 [58]

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

c=1/4

Decimal Form:

c=0.25

8 0
3 years ago
Can you help me with these problems please?5-3/8
son4ous [18]
CAN  SOMEONE PLEASE HELP  ME ANSWER THIS  QUESTION 


7 0
3 years ago
what is the volume of a triangular prism that is 75 centimeters long and that has a base with an area of 30 square centimeters
pychu [463]
75 * 30= 2250 that's how u get the answer
3 0
3 years ago
6th grade math i mark as brainliest​
Alinara [238K]

Answer:

16

Step-by-step explanation:

4*4

6 0
3 years ago
Other questions:
  • What expression is equivalent to (5x9)-(5x6)
    11·2 answers
  • Which is the better buy? circle it<br> $5.00 for 4 mangoes<br> $6.00 for 5 mangoes
    11·2 answers
  • Using Cramer's rule to solve linear systems.
    10·1 answer
  • What is the third quartile of this data set?<br> 20, 21, 24, 25, 28, 29, 35, 36, 37, 43, 44
    13·2 answers
  • PLEASE HELP ASAP FIRST TO ANSWER CORRECTLY GETS BRAINLYIST
    15·1 answer
  • C and d for 20 pts <br> aaaaaaaaaaaaaaaaa
    6·2 answers
  • I need help!!! What is Sin^-1 (7)
    15·1 answer
  • Question 1 of 10
    10·1 answer
  • The following stem-and-leaf plot represents the distribution of weights for a group of people. Stem Leaves 9 1 1 3 6 7 10 4 6 7
    11·1 answer
  • 3/5 of 7 pls help shshshshs
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!