katfried7 katfried7
  • 04-07-2021
  • Mathematics
contestada

when x^2 - 3x +2k is divided by x+2, the remainder is 7. find the value of k.

Respuesta :

Eddie1Wan
Eddie1Wan Eddie1Wan
  • 04-07-2021

Answer:

let's find the zeros of the divisor

x+2=0

x=-2

let x²-3x+2k =f(x)

Now f(-2)=(-2)²-3(-2)+2k=7

4+6+2k=7

2k=7-10

2k=-3

k=-3/2

Answer Link

Otras preguntas

Zoey made 6 3/4 cups of fruit salad for a picnic. At the picnic, they ate 1/3 of the fruit salad. How much fruit salad did they eat?
How do tussock moths obtain energy in cellular respiration?
write the equation in function form then graph the equation 3x-y=5
Which is an example of bivariate data?(1) age of students in a club(2) grade level and age of students in a school(3) type of lunch each student orders at schoo
The traits of populations in the forest ecosystem have changed over time. What caused the traits to change?
how did jazz demonstrate the independent spirit of the times?
Describe William Shakespeare in one word
determine whether each expression is meaningful as  a real number  yes or no?   -√9
Why did Pres. Truman believe that political change would come to the Soviet Union?A. The failures of the Soviet Nuclear programB. The Appeal of freedom and the
First year profits of a business were $900 . Second year profits were $1200 . What percent of the first year profits were the second year profits.