If one root of the equation 2x2+ax+6=0 is 3, then find the value of a
-8
7
3
-5
If one root of the equation 2x2+ax+6=0 is 3, then x=3 will satisfy the equation,
2(3)2+3a+6=0
⇒18+3a+6=0 24+3a=0
⇒a=−8
If one root of the equation 2x2+ax+6=0 is 3, then find the value of a.
If one root of the quadratic equation 2x2+ax−6=0 is 2, find the value of a.