Question

If 1/2 is a root of the equations x*2 + kx-5/4 then find the value of k.
Pls answer me fast.
If available pls take photo of solution​

Answer 1

Answer:

x2 + kx - 5454 = 0 (12)2(12)2 + k(12)(12)- 5454 = 0 ⇒⇒ 1414 + k2k2- 5454 = 0 1+2k−541+2k−54 = 0 ⇒⇒ 2k - 4 = 0 ⇒⇒ k=2

Answer 2

Answer:

k=2

Step-by-step explanation:

in the attachment above