Question

5.
If one root of the equation 2x² + ax +6= 0 is 2, then a is equal to
(1) 8
(ii) 7
(iii) -8 (iv) 4
The values of lr for which the wroti otis 162
The values of k for which the aun
- o has
6.​

Answer 1

-7

It is given that one root of equation

2x²+ax+6=0 is 2

So, 2×2x²+ax+6=0

2a+14=0

Hence, a = -7