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

the first group of European to colonize and permentally settle around the cape of good hope was the?

HELPPP ME PLZZZZZZZZZZZZZZZZZZZZWhat is the measure of angle CED? m, because Triangle ABC is similar to triangle EDC m over 2, because Triangle ABC is congrue

What is the best book on the history of mathematics?

Graph y=x^2+1 is it a function Is it a function? How did you determine whether or not it was a function? Determine the range and domain

Which statement about spontaneous and nonspontaneous processes is correct? Spontaneous processes are favored by a decrease in H, but nonspontaneous reactions ar

what is the answer to this question???

Which of the following roles would Congresswoman Chisholm want most to be remembered as having participated in? A. activist working for equal rights for women

Please help this is urgent!! list the cubes of the numbers from 1‒6, and 10. Then write the cube roots of each cube.

What song has theses lyrics? "Everytime I see your smile, and your halo."

A CD with a regular price of $15.99 is on sale for 10% off. To find the sale price, multiply $15.99 by 0.01 and subtract the product from $15.99. True False