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

the path of the sun through the constellations of the zodiac is known as the
ghicitori despre reguli de politete
the novel the awakening by chopin, how does the lady in black function in the novel
Katie jogged a total distance of 8 and 1 over 2 miles during the months of January and February. If Katie only jogged 1 over 4 mile every day, which expression
the discriminant for x²+3x+11=0
What would you use to describe blue in this sentence Blue sounds like..
An element's atomic number is 13. How many protons would an atom of this element have?
A minor second is the same as a half step. True or False
One type of plant root splits 44 times while growing in the ground. The number of new roots after each split can be modeled by the function f(x)=3^x where x is
Tidal energy is generated from the