Question

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

Answer 1

Answer:

given that one of the root is 1/2 and to find the value of k

Step-by-step explanation:

x^2 + kx - 5/4 = 0

then we put the value of x at x = 1/2

⇒ (1/2)^2 + k(1/2) - 5/4 = 0

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

k/2 = 5/4 - 1/4

k/2 = (5-1)/4

k/2 = 4/4

k/2 = 1

⇒ k = 2×1

⇒ k = 2

Answer 2

Here is the answer... hope it helped:)