Question

if one of zeros of quadratic polynomial is k - 1 X square + kx + 1 is minus 3 then find the value of k​

Answer 1

Answer:

Given : One of the zeros of quadratic polynomial (k−1)x  

2

+kx+1 is −3

To find : Value of k

Solution : As −3 is one of the zeros of quadratic polynomial (k−1)x  

2

+kx+1

⇒ When we substitute −3 in the polynomial , we get 0

⟹(k−1)(−3)  

2

+k(−3)+1=0

⟹9k−9−3k+1=0

⟹6k−8=0

or k=  

6

8

​

=  

3

4

​

Step-by-step explanation: