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

there are 48 pepsi,84 miranda and 60 sprite bottles in a grocery shop. these bottles are to keep in a crate has the same number of cold drinks. find the maximum

Choose the correct description of the graph of the compound inequality: x − 3 < −9 or x + 5 greater than or equal to12 (5 points) Select one: a. A number l

Please help me with math problem

Divide 5 pounds 8 ounces by 3 ? please show work

Please answer this correctly

Can someone please help me

I need to explain/show work. Help please

How do I sign up for subscription

First former ffa member elected to u.S. Presidency

Suppose 12% of students chose to study Spanish their freshman year, and that meant that there were 15 such students. How many students chose not to take Spanish