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

The Lopez family is moving to another city. An online budget estimator says their required monthly income will be $5,900. How much more per month will they need
(07.01 LC) According to the situation decide how you would feel and select the correct expression: Her dog just died, elle se sent __________ (3 points) triste
What is swift and satire about?
Which expression shows how to convert 60 hours to days?
what is security in Technology​
Please help me Asap I will mark you as the brainiest
why do countries create governments
40 POINTS Simplifying exponents and rules of exponents simplify the expressions below: 2 4 3 0 4 6 4 -3 2 3 2
What is the purpose of the passage based on its language?
Why does warm soda go flat faster than chilled soda?