tewjackson5953 tewjackson5953
  • 02-07-2018
  • Mathematics
contestada

Write a polynomial function in standard form with real coefficients whose zeros include 2 comma 7 i comma and negative 7 i .

Respuesta :

Luv2Teach
Luv2Teach Luv2Teach
  • 02-07-2018
This will be a third degree polynomial since we have 3 zeros.  We will FOIL them out.  They are: (x-2), (x+7i), (x-7i).  The product of the second and third factors gives us [tex]x^2-49i^2[/tex].  i^2 = -1, so if we simplify, we have [tex]x^2-49(-1)=x^2+49[/tex].  Now we will multiply that with x-2 to get [tex]x^3-2x^2+49x-98[/tex].  There you go!
Answer Link

Otras preguntas

Write a possible polynomial function in factored form with roots 0, -5, and 3.
what is the surface area of this cube the dimensions are 5 cm 4 cm 5cm starting from lxwxh
A medical clinic has a crew of 5, two of which have been infected with a virus althoughthey show no symptoms. If you select two crew members for a task, what is
Hello, can you help me find the solutions to this problem?
A mechanic has a length of hose 3 ft long. What is the length after 9in is cut off?The length is _ ft _ in?
How many lines are determined by 18 points, no 3 of which are collinear?
Consider the function f defined by:f(x)=4x-12 FIND: The value of f at x=-7The value of f when x=1
Find the polynomial that represents the perimeter of the figure. simplify your answer.
In humans, a slightly elevated temperature can be beneficial. Why? What happens if the fever is too high?
which equation describes the line with a slope of 2/3 that passes through the point