Question

If one of the zeros of the quadratic polynomial (k-1)x2+Kx+1 is '-3' then the value of 'k' is_______

Answer 1

Answer:

Answer is : -1

Step-by-step explanation:

Given one of the zeros of quadratic polynomial (k-1) × 2 + kx + 1 is -3

so, we substitute -3 in the polynomial, we get 0

(k-1) × 2 + k (-3) +1 = 0

2k - 2 + (-3k) + 1 = 0

2k - 2 - 3k + 1 = 0

-k -1 = 0

-k = 1

k = -1.