Top Posters
Since Sunday
A
6
j
6
c
5
m
5
C
5
d
5
s
5
n
4
i
4
d
4
d
4
J
4
Home Q & A Board Science-Related Homework Help Mathematics
New Topic  
datdude666 datdude666
wrote...
Go to Answer
Posts: 75
Rep: 1 0
10 years ago
Find an equation of a quadratic function with a  complex zeros 1+4i and 1-4i

Hope somebody can help me with this!!

thanks in advance!!!
Read 288 times
2 Replies
Replies
Answer accepted by topic starter
SpencerBradleSpencerBradle
wrote...
#1
Posts: 7
Rep: 0 0
10 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

wrote...
#2
10 years ago
Use the factors [ x - (1 + 4i) ] [ x - (1 - 4i) ]
Multiply it out and you have your polynomial.

x² - (1 - 4i)x - (1 + 4i)x + (1 + 4i)(1 - 4i)
= x² -x + 4ix - x + 4ix + 1 - 16i²
= x² - 2x + 1 + 16
= x² - 2x + 17
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  922 People Browsing
 110 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 127
  
 299
  
 286
Your Opinion
Who will win the 2024 president election?
Votes: 8
Closes: November 4
Previous poll results: Which industry do you think artificial intelligence (AI) will impact the most?