anisagreen10 anisagreen10
  • 18-12-2018
  • Mathematics
contestada

How many no real complex roots does the polynomial f (x) = x^4 - x^2- 12 have?

A. 0
B. 1
C. 2
D. 3
E. 4

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 18-12-2018

Answer:

  • 2 real roots
  • 2 complex roots

Step-by-step explanation:

f(x) factors as ...

... f(x) = (x² -4)(x² +3) = (x -2)(x +2)(x² +3)

The real roots are x = ±2.

The complex roots are x = ±i√3.

___

We don't know what "no real complex roots" means. We suspect your answer may be C. 2.

Answer Link

Otras preguntas

What can limestone deposits tell scientists about the environment in which they evolved?
The ocean tides on Earth are caused by the positions of the Moon and Sun. Why does the position of Jupiter not strongly affect the ocean tides? A. Because Ju
evaluate the expression -4(7-2x) where x= -1
Use the diagram to answer each question. How do volcanoes form at A?
what is the simple interest rate if $88.87 in interest is earned on a deposit of $1469.04 in one year?
How can you rewrite the expression 1 1/4 + 1/2 - 1/4 as first step in simplifying it? Of the choices below, which shows the best first step and property to rewr
Mr. Simpson spent five hours working on his lawn if you spent 25% of the time edging the flowerbeds how much time did he spend edging
A candy distributor needs to mix a 10% fat-content chocolate with a 40% fat-content chocolate to create 100 kilograms of a 28% fat-content chocolate. How many k
A patient under contact precautions wants to know if he may have visitors
Write a brief essay discussing Peter's transformation as described in Luke 5:11 **250 word long please**