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 was the turning point in Native American/Puritan relations?
the .measures of two adjacent sides of parallelogram are in the ratio 17:7 if the second side measures 3.5 cm,find the perimeter of the parallelogram ​........I
if a + b + c =180 and cosa = cosb +cosc than prove that cotb *cotc=1/2​
4.5, 9, 13.5, 18... a. Is it Arithmetic or Geometric?b. Find the next termc. What is the commondifference/ratio?d. Write the explicit formulae. Calculate the 15
Why is good soil tilth necessary for good plant growth? A) It increases the sunlight absorbing property of the plant. B) It increases the size of rock particles
Where do we get biomass energy from
How does ATP transfer energy to a reactant in an endergonic reaction?
ABCD is a parallelogram. AE ⊥ DC, A[] ⊥ BC, AD = 10, AB = 15, A[] = 12. Find the length of AE. [] = F. For some reason brainly won't let me ask the question.
The probability that an international flight leaving the United States is delayed in departing (event D) is .28. The probability that an international flight le
The use of imagery in the poem bat