Question

If the sum of the roots of the equation `kx^2+2x+3k=0` is equal to their product then the value of k 

`(a) 1/3   (b)-1/3  (c)2/3   (d)-2/3`  

 

 

Answer 1

Given:

`kx^2+2x+3k=0` 

Sum of the roots = Product of the roots 

⇒ `-2/k=(3k)/k` 

⇒ `3k=-2` 

⇒` k=(-2)/3`