Question

if 1/2 is one root of the equation x2+kx-5/4=0 what will b the value of k​

Answer 1

Answer:

5/4

Step-by-step explanation:

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Answer 2

Answer:

The value of k is 3

Step-by-step explanation:

Let x be the second root

An quadratic equation is formed by

x^2 + (sum of roots)x + (product of roots)

product of roots = 5/4

And we know that one root is 1/2

x(1/2)=5/4

x = 5/2

sum of roots = k = x + 1/2 = (5/2) + (1/2) = 6 / 2 = 3