Question

3. Choose the correct answer from the ginen
1. If one of the yeroes of the quadratic polymo
ial (n-1) 2² kn+1 is -3, then the value of le
is
( cal 45 (6) _4 W123 (d) = 2 2 2​

Answer 1

Answer:

−3 is the zero of the polynomial (k−1)x

2

+kx+1

So −3 must satisfy the equation (k−1)x

2

+kx+1=0

⟹(k−1)(−3)

2

+k(−3)+1=0

⟹9(k−1)−3k+1=0

⟹9k−9−3k+1=0

⟹6k=8

⟹k=

3

4