The quadratic has one root with multiplicity 2 if the discriminant is 0, which is
(That is, for a quadratic , the discriminant is
.)
Set the discriminant equal to 0 and solve for :
Solve for b. -1/6b=3
1 answer:
You might be interested in
Answer:
Angles in a triangle add up to 180.
ABG - x + 90 + ANGLE AGB = 180
Angles on a straight add up to 180.
CDE - 8x + ANGLE D + 3x = 180
Alterate angles - ATTACHMENT
ANGLE D = x
8x + x + 3x = 180
12x = 180
x = 180/12
<h2>x = 15</h2>