emmy83 emmy83
  • 01-12-2017
  • Mathematics
contestada

Find a polynomial of degree 2 with real number coefficients and zero 3-2i

Respuesta :

Аноним Аноним
  • 01-12-2017
Complex roots occur as conjugates so the other root is 3 + 2i

so we have  the factored form 

(x - (3 - 2i)(x - (3 + 2i)

= (x - 3 + 2i)(x - 3 - 2i)

= x^2 -3x - 2ix - 3x + 9 + 6i + 2ix - 6i- 4i^2

=  x^2 -6x + 9 + 4

= x^2 - 6x + 13   Answer
Answer Link

Otras preguntas

What might have shocked readers about Dickinson’s view of spirituality?
what is the idea behind bottle biology
7. Mrs. Everhart developed the theory that all bulldogs are great pets. After all her bulldog Meatball is a wonderful dog! Is this statement a scientific theory
solve the question x/-4 = 3/4 so 'x' is equal to?
ANSWER AS SOON AS POSSIBLE PLEASE! Jessica has $19. She buys 4 apples for x dollars each. Levi has $30 and buys 7 apples for x dollars each. Write an expression
¿Por qué plantea Adolfo Ramírez que el zapping es un fenómeno de la cultura?
What percent of U.S. physicians are specialists?
In a ballistic pendulum experiment, suppose the digital timer shows 0.02 s for the time of flight of the projectile. The manufacturer information about the prec
what animals have poison warning or mimicry that are in the grasslands
Identify the three original colonies that bordered on or "touched" Maryland.