Question

Find the value of k if the polynomial x+2x-kx²+x-1 exactly divisible by (x+2)​

Answer 1

Step-by-step explanation:

zoo XP dooo do em to El do do

Answer 2

k =7/4

zero of the polynomial x=-2

p(x)= x+2x+x-kx²-1=0

4x -kx² -1 =0

-kx²+4x-1 =0 ( since quadratic equation

start with x² and it should be

+ve)

-(kx²-4x+1) =0

kx²-4x+1=0

p(-2)=k× (-2)^2 -4×2+1=0

remaining step in the photo