Question

if 2 us a root of the equation x2+bx+12=0 find the value of b

Answer 1

Answer:6 is right answer

Step-by-step explanation:

Answer 2

Put value 2 in equation and equate to 0
${2}^{2} + 2b + 12 = 0 \\ 2b = - 16 \\ b = - 8$