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

What is the math sentence for 3.46 and 0.346
Evaluate 4(a^2 + 2b) - 2b when a = 2 and b = –2.
Hi hi. I have a legit question now. If the mean is 52$ and the standard deviation is 3$ how do you find the z score? My problems for this are A. Less than 50 B
What’s the unit rate of 80 : 40​
Why has World War I been described as a "total war"?
Ashley is picking apples. She fills two baskets with apples and puts 5 apples in her pockets. The larger basket holds 35 more apples than the smaller one holds.
Convert 1/6 to a percent
Congressmen are protected from arrest while in session true or false
find the final amount of money in an account if $4,300 is deposited at 4% interest compounded semi-annually and the money is left for 5 years
In many cases, a ribbon organizes buttons and options in Select one: a. menus. b. sections. c. toolbars. d. groups.