Question

Find K for which-1/2 is a zero of polynomial P(x)=x^2+2kx-3

Answer 1

Step-by-step explanation:

0=-1/2^2 +2×k×(-1/2)-3

0=1/4 -k -3

k=-11/4

Answer 2

Answer:

k=-11/4

Step-by-step explanation:

P(x) =x²+2kx-3

x=-1/2

P(-1/2)=(-1/2)² + 2k(-1/2) - 3

0=1/4 - k - 3

k=1/4 - 3

k=-11/4