Question

if the root of given quadratic equation are real and equal then find the x^2+2x+k?​

Answer 1

Step-by-step explanation:

Both the roots of quadratic equation x^2-2.x+k

= 0. , thus D or, b^2-4ac = 0.

Here , a=1. , b=-2 and c =k.

b^2 -4.a.c = 0

or, (-2)^2 -4.1.k = 0.

or, 4 = 4.k => k=4/4 = 1. Answer.

hope this helps you