SOLUTION: Find a cubic function with integral coefficients having (4 + 3i) and -3 as roots
Algebra
->
Test
-> SOLUTION: Find a cubic function with integral coefficients having (4 + 3i) and -3 as roots
Log On
Test Calculators and Practice
Test
Answers archive
Answers
Word Problems
Word
Lessons
Lessons
Click here to see ALL problems on test
Question 797919
:
Find a cubic function with integral coefficients having (4 + 3i) and -3 as roots
Answer by
tommyt3rd(5050)
(
Show Source
):
You can
put this solution on YOUR website!
If coefficients are real and roots are complex, then roots occur in complex conjugate pairs:
(x-(4+3i))(x-(4-3i))(x-(-3)) =
x^3-5x^2+x+75