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

negative acceleration & positive acceleration, what are they?
how how many 25s are in 300
the difference between the square roots of a number is 30. What is the number?
what is the word form for 12,324,904?
word form for 600,000+80,000+10
The rain shadow effect is used to describe rainfall around certain mountain ranges. Which of the following statements is true? (A) The northern hemisphere and
what is the place value of 0.8?
What is 6,007,200 in word form and expanded
the speed at which at a certain computer can access the internet is 2 megabytes per second how fast is this in megabytes per hour
which digit has the same value in both numbers? What is the value of that digit? 123,456,789 987,654,321