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

Firewood is often sold by the cord. A cord of wood is a bundle measuring 4 feet by 4 feet by 8 feet. What is the volume of a cord of wood in cubic feet? A. 3,45
What makes up an ecosystem
Which tribes threatened to invade rome?
A population of fruit flies on an island lay their eggs in some rotting fruit. Some of the fruit is blown into the ocean by a storm and washes up on another isl
All of the following expressions are equivalent to 12w + 6, except: a.-1(12w - 6) b.(3 + 6w)2 c.6(1 + 2w) d.-1(-12w - 6)
what happens to the thickness of the uterine lining when the level of progesterone reaches its highest level
In the diagram shown, line mm is parallel to line nn. Cruz says that ∠4∠4 and ∠6∠6 are congruent angles. Is he correct? Why or why not? a) Yes, because they are
Terrance __________ watch the movie, but only after he completes his chores. a. can b. may
What is the best way to study for a chemistry SOL? Does anyone have any good study links?
The result of the Plessy v. Fergusson Supreme Court decision was that segregation laws were a. considered constitutional. b. now banned in the South. c. now