Question

find value of k if one of the zeroes of polynomial 4x^2-5x+k is (-2)​

Answer 1

Answer:

Step-by-step explanation:

Correct option is

A

0

The question says one root is negative of others.

So, the sum of the roots must be zero.

For any quadratic equation

Like : ax  

2

+bx+c=0

The sum of roots is given by  

a

−b

​  

 

So, in this equation : 4x  

2

−8ka−9

b=−8k & a=4

So, 0=  

a

−b

​  

 

4

−(−8k)

​  

=0

2k=0⇒k=0

Answer 2

Answer:

Hey mate here's your answer