Question

If 2 is a root of the equation x²+bx+12=0 then the value of b *
1 point
-8
16
8
-16​

Answer 1

2×2+2b+12=0

4+2b+12=0

16+2b=0

2b= -16

:.b= -16/2

= -8//

Answer 2

ANSWER :- -8

Explanation:

2×2+2b+12 =0

4+2b+12 = 0

16+2b=0

2b= -16

b= -16/2

= -8 = Ans