Question

If one root of quadratic equation 2 X square + AX + 6 = 0 is 2 then what is the value of a ??

Answer 1

Answer:

-7

Step-by-step explanation:

2x²+ax+6=0

let x=2

2*2*2+2a+6=0

8+6+2a=0

2a=-14

•'•a=-7