Question

(3) Which of the following is the value of k if the
roots of x^2
+ kx + k = 0 are real and equal?
(A) O (B) 4 (C) 0 or 4 (D) 2​

Answer 1

Answer:

$since \: roots \: are \: real \: and \:equal \\ \frac{ - b}{2a} \: \: , \: \: \frac{ - b}{2a} \\ \therefore \: \frac{ - k}{2} = 0 \\ \boxed{k = 0} \\ \\ \red{\mathfrak{ \large{\underline{{Hope \: It \: Helps \: You}}}}} \\ \blue{\mathfrak{ \large{\underline{{Mark \: Me \: Brainliest}}}}}$