Question

if 1/2 is the root of equation x^2+kx-5/4=0 then find the value of k​

Answer 1

(1/2)^2 + k/2 - 5/4 = 0

1/4 + k/2 - 5/4 =0

-1+k/2 = 0

k/2 = 1

k = 2