Question

The roots of x² + kx+ k=o are
real and equal, find k.​

Answer 1

Step-by-step explanation:

Given x 2 +kx+k

roots are real & equal

∴b 2−4ac=0

=(k) 2 −4(1)(k)=0

=k 2 −4k=0

=k(k−4)=0

∴ k = 0 or k = 4