budurrashrash budurrashrash

03-06-2020
Mathematics

contestada

Given f(x)=x^3+2x+k.
and x+1 is a factor of f(x), then what is the value of k?

Respuesta :

PollyP52 PollyP52

07-06-2020

Answer:

k = 3.

Step-by-step explanation:

By the Factor Theorem. if x+a is a factor of f(x) then f(-a) = 0.

Here we use f(-1):

f(-1) = (-1)^3 + 2(-1) + k = 0

-1 - 2 + k = 0

k = 3.

Answer Link

Otras preguntas

Which sentence is constructed correctly and clearly? Because we wanted at long last to be finished with the project, we forgot the conclusion. Because we wanted

Explain why doctors recommend getting flu shots each year.

Trying to reduce food intake by fasting or avoiding food as long as possible is referred to as a. weight cycling. b. binge eating. c. purging. d. restrained

Solve for x X ²-5x=2(leave answer in a surd form)

How can you improve poor education facilities

compared with the United states

Question is in the image. Please help!

What type of machine is a pair of scissors? a. Simple - Lever b. Simple - Wedge c. Compound - Lever and Wedge d. Compound - Inclined plane and lever.

What is a sex linked trait? What is the difference in inheritance between boys and girls for sex linked traits? Describe an example of a sex linked trait in hu

What was Rip Van Winkle's first thoughts upon awakening after his long sleep? a. He worried that his gun had been stolen by the stranger while he was asleep.