Question

find the value of k if (x-1) is a factor of p(x) amd p(x)= 2x²+kx+2​

Answer 1

Answer:

k = -4

Step-by-step explanation:

x-1 is a factor of p(x)= 2x²+kx+2

x=1

p(x) =2x²+kx+2

=2(1) + k (1) + 2

= 2+k+2

=4+k

-4 = k

Answer 2

Step-by-step explanation:

first we find the value of x

=> x-1 = 0

=> x = 0 + 1

=> x = 1

so the value of x is 1 .

=> 2x² + kx + 2 = 0

we will put the value of x .

=> 2 x 1² + k x 1 + 2 = 0

=> 2 + k + 2 = 0

=> k + 4 = 0

=> k = 0 - 4

=> k = - 4

Therefore , the value of k is - 4.

hope my answer is right!!! :-)