Question

complete the following activity: find “k'if x= -1 is the root of equation 5x²+Kx+8 =
x=-1 is the root of 5x²+Kx+8=
putting x=-1 in the given equation lesson 2. answer​

Answer 1

Answer:

Given,

x=5 is one of the root of the equation kx

2

−14x−5=0

then, it should satisfy the equation,

k(5)

2

−14(5)−5=0

⇒k=

5

2

14(5)+5

∴k=

25

75

=3

Step-by-step explanation:

I hope it is helpful for you..