Question

if (3+i) is a root of the equation x^2 +ax+b=0 then a is equal to ​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

a = - 6

Step-by-step explanation:

if (3+i) is a root of the equation x^2 +ax+b=0

(3 - i) is a root of the equation x^2 +ax+b=0

sum of roots = - a /1

3 +i +3 -i    = -a

6 = -a

a  = -6  ​