Question

If x²+kx+1=0 has a root x=1 then k=?
(a)1 (b)2 (c)3 (d)-2​

Answer 1

Answer:

the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.

the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.the features or properties of motion in an

the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion.the features or properties of motion in an

Answer 2

Answer:

p(x)= x²+kx+1=0

p(1)= (1)²+k(1)+1=0

= 1²+1k+1=0

-1k= 2

k = 2/-1

k = -2

(d)-2