Question

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

Answer 1

Step-by-step explanation:

Putting x=1/2

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

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

1+2k-5/4=0

2k-4=0

2k=4

k=2

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