Question

If I root of the quadrilateral equation 2x2+kx-6=0 is 2. Find the value of k and also find the other root.

Answer 1

Hey


The given equation is :-


2x² + kx - 6 = 0


one root is 2 .

So ,

putting the value of x ,


2 ( 2 ) ² + k ( 2 ) - 6 = 0


=> 8 - 6 + 2k = 0


=> 2 + 2k = 0


=> 2k = -2


=> k = -1


thanks :)