littledavidfighter littledavidfighter
  • 15-07-2019
  • Mathematics
contestada

If (x + 2) is a factor of x3 − 6x2 + kx + 10, k =

Respuesta :

absor201
absor201 absor201
  • 15-07-2019

Answer:

The value of k is -11

Step-by-step explanation:

If (x+2) is a factor of x3 − 6x2 + kx + 10:

Then,

f(x)=x3 − 6x2 + kx + 10

f(-2)=0

f(-2)=(-2)³-6(-2)²+k(-2)+10=0

f(-2)= -8-6(4)-2k+10=0

f(-2)= -8-24-2k+10=0

Solve the like terms:

f(-2)=-2k-22=0

f(-2)=-2k=0+22

-2k=22

k=22/-2

k=-11

Hence the value of k is -11....

Answer Link

Otras preguntas

what is the simplest form of 0.3
The us constitution reflects the principle of individual rights because
If Joan of Arc was such an amazing person, and so faithful to God, why did she die such a terrible death?
when the united states joined the allies, why did the allies concentrate first on defeating hitler?
what is one of the primary reasons that trade between nations takes place
Which sentence is punctuated correctly? I used the green pen, not the red one for my homework. I used the green pen, not the red one, for my homework. I used th
miss Evans earns £240 per week. she is awarded a pay rise of 3.5% how much does she earn each week after her rise?
in a photo a man is 1.5 inches in height. if the man was 6 feet tall what is the scale
Can you fly if you have a blood clot in your leg?
• Founded a Roman Catholic religious order known as the Jesuits • Made a Catholic saint on March 12, 1622 by Pope Gregory XV • Fought against the Protestant Ref