Question

Q19. If 2 is a root of the
2 points
equation x2+ax+b=0 and
quadratic equation x²+ax+b=0
has equal roots then b=?
O 8
O 12
O 16
O20
O Other:​

Answer 1

I couldn't understand what you want to say about it and I did not know it...

Answer 2

Answer:

16 is the correct answer