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

Which sentence uses a verb that agrees with its pronoun subject? A. Have I said anything to worry you? B. You girls has to finish your homework before dinner. C
Graph the function with the given domain then identify the range of the function Y=3x-2 domain (greater than or equal to sign) 0
Can anyone tell me ideas of science pprojects? Thanks!
find the area and perimeter of an isosceles trapezoid with legs 25cm and bases 16cm and 30cm
derivative of this function Y= -7X³ -8X² +6X +3
Which best reflects the central message of “The Second Coming”?
f(x)= |3x-4|+2, find f(-10)
Verona is solving the equation -3 + 4x = 9. In order to isolate the variable term using the subtraction property of equality, which number should be subtracted
Which statement about King Henry II of England is correct? A. He forced rebellious lords to sign the Magna Carta, swearing allegiance to him. B. He installed a
what is solar power?