Question

solve question no 7 solve fast

Answer 1

$hello \: mate$

It is given that one of the roots is negative of the other.

So, let the roots be:

$\alpha \: and \: - \alpha$

➡Now, sum of roots:

$\alpha + ( - \alpha ) =$

↪-b/a

➡0= -(-8k)/4

➡0=8k/4

➡0=2k

➡k=0