xmayble
xmayble xmayble
  • 21-05-2017
  • Mathematics
contestada

Please help me understand this problem.

Please help me understand this problem class=

Respuesta :

bcalle
bcalle bcalle
  • 26-05-2017
The rule to find the SUM of the roots of a quadratic equation is: -b/a
The rule to find the PRODUCT of the roots of a quadratic equation is: c/a
We need the sum to be -3 and the product to be 4-4/

If you go through the answer choices:
A) a = 1, b = 4, c = - 3
-b/a = -4/1 = -4 This is NOT correct
B) a = 1, b = 3, c = 4
-b/a = -3/1 = -3 This is correct
c/a = 4/1 = 4 This is also correct

LETTER B is the correct answer.
 
Answer Link

Otras preguntas

how to show these 2 problems are inverses
The principal character in a tragedy is the _______. antagonist chorus protagonist
What was our first federal government based on? A.The Constitution B.The bill of rights C.The articles of confederation D.The preamble
#5 please help me thank you.
Redbox uses the _____ element of the marketing mix to make movie rentals available for customers when and where they need them.
What were the costs of females working in silk factories?
Determine whether each pair of triangles is similar. Justify your answer.
A semicircle is attached to the side of a rectangle as shown. What is the best approximation for the area of this figure? Use 3.14 to approximate pi. Select fro
how is the frog's respiratory system different from humans?
The hierarchy of needs is the spectrum of needs ranging from basic ________ needs to ________ needs to self-actualization.