Question

if the quadratic equations x2-2x+k=0 has equations root then value of k is​

Answer 1

Hey friend,

Here is the solution :-

Here, a = 1; b = -2 ; c = k

$we \: have \: the \: formula : \\ \\ d = {b}^{2} - 4ac \\ \\ d = ( { - 2})^{2} - 4 \times 1 \times k \\ \\ d = 4 - 4k \: \\ \\ when \: roots \: are \: equal \: then \: d = 0 \\ \\ 4 - 4k = 0 \\ \\ - 4k = - 4 \\ \\ k = \frac{ - 4}{ - 4} = 1$

Here, k = 1.

✨I hope this will help you....✨