Question

if 1/2 is the root of the equation x²+kx _5/4=0 . the value of k is 2 ,-2, 3 ,-3​

Answer 1

Answer:

k=2

Step-by-step explanation:

pit x =1/2

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

1/4+k/2=5/4

k/2=5/4-1/4

k/2=4/4

k/2=1

k=2( cross multiply)

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