jonestrishy3948 jonestrishy3948
  • 04-03-2021
  • Mathematics
contestada

2. If k is a constant, what is the value of k such that the polynomial k2x3 - 6kx+9 is divisible by x - 1?

Respuesta :

JeanaShupp
JeanaShupp JeanaShupp
  • 05-03-2021

Answer: The value of k =3.

Step-by-step explanation:

According to factor theorem, if g(x) =x-a is a factor of p(x) then p(a)=0.

Given: [tex]x-1[/tex] is a factor of [tex]k^2x^3-6kx+9[/tex].

then

[tex]k^2(1)^3-6k(1)+9=0\\\\\Rightarrow\ k^2-6k+9=0\\\\\Rightarrow\ k^2-3k-3k+9=0\\\\\Rightarrow\ k(k-3)-3(k-3)=0\\\\\Rightarrow\ (k-3)(k-3)=0\\\\\Rightarrow\ k=3[/tex]

Hence, the value of k =3.

Answer Link

Otras preguntas

the sum of two numbers is 92.Their difference is 20
2 Quarts 2 Liters __is larger than___ ( about __cups larger) explain how you did this
what is equivalent to 6(p+5)
What is the answer to 2x+2y=36 when x-y=6
Who was most famous for giving his 'V' for victory hand signal at public meetings ?
Caitlin has 4 3/4 pounds of clay she uses 1 1/10 pounds to make a cup and another 2pounds to make a jar how many pounds are left write an equation
What is the answer to 2x+2y=36 when x-y=6
Which rate is a unit rate? $250/40 hours 26 miles/1 gallon 1 cup/3 scoops 300 miles/5 hours
Use two unit multipliers to convert 32 square millimeters to square centimeters. Will somebody thoroughly explain this to me? Thanks a million.
Which park contains a canyon that is 10 miles (16 km) long with walls that reach 3,000 feet (910 m) high?