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

In "Hearts and Hands," in what way does O. Henry's choice to use a surprise ending allow readers to see story details in a new light after finishing the story?
Wires,plugs,speakers, chis are all examples of what
I hate brainly. Take these points. Do you know how I feel when you ask a question and someone answers saying “I don’t know”. They are just trying to get the poi
I need help with this question. Please help :D
The price of a ride pass at a fun park is $65. What is the sale price after a 35% discount?
ANSWER ASAP Which two expressions are equivalent? A: x(7+4) and 7(x) + 4(x) B: 7 - (5•x) and (7-5) • x C: 4(x-9) and 4(x) - 9 (x)
sO cLoSe yEt sO fAr aWaAaAaAy...
OMG PLEASE HELP ASAP
What measures the amount of current flowing through a wire?1. watt2. ampere3.voltage
The location oon the surface of the Earth directly above the focus of an earthquake is called the A.focus point B.seismic wave C.epicenter