matokiwasssup
matokiwasssup matokiwasssup
  • 03-02-2018
  • Mathematics
contestada

In the equation f(x) = x²+2x+3, there are 2 root.
true or false?

Respuesta :

Аноним Аноним
  • 03-02-2018
this is a equation:
ax²+bx+c=0

If you want the number of roots in any equation:
you only have to do this operation.
b²-4ac

if b²-4ac>0 you have two roots.
if b²-4ac=0 you have one root
if b²-4a<0  you don´t have any real root.


in this case:
x²+2x+3=0
b²-4ac=2²-4(1)(3)=4-12=-8<0  ; then you don´t have any real root.

answer. false
 
Answer Link

Otras preguntas

F a cause of death cannot be found through simple observation of the victim, a(n) _____ is typically carried out.
Select the correct answer from each drop-down menu. Why did Henry VIII seek a separation from the Catholic Church?
Please help me!!!!!!!!!!!!!!!!!
What is the most effective way to generate potential solutions to a problem? how many alternate solutions should you generate?
given any triangle ABC labeled as shown, the law of sines states that:
Please help me urgent IM REALLY DESPARATE lolol
What is the value of x?
(2x - 3y)(4x - y) can you help me
what is brood nurse​
Dwarf mistletoes are flowering plants that grow on certain forest trees. They obtain nutrients and water from the vascular tissues of the trees. The trees deriv