alize123213 alize123213
  • 15-12-2018
  • Mathematics
contestada

What are the roots of this function? f(x) = x2 – 8x + 12 A) {2, 6} B) {8, 12} C) {-3, -4} D) {-4, -4}

Respuesta :

whiskeyo
whiskeyo whiskeyo
  • 15-12-2018

Answer:

A.

Step-by-step explanation:

delta = [tex]b^{2} - 4ac = (-8)^{2}-4*1*12 = 64 - 48 = 16[/tex]

[tex]x_{1} = \frac{b-\sqrt{delta}}{2a} = \frac{8+4}{2} = 6[/tex]  

[tex]x_{2} = \frac{b+\sqrt{delta}}{2a} = \frac{8-4}{2} = 2[/tex]


Answer Link

Otras preguntas

Westin hotels, inc. has an objective of achieving a 25 percent return from its overall sales. this is an example of a ____ pricing objective. market share cash
what is the defferent between asepsis and antisepses​
What is most likely impact of this sentence on readers paragraph 1
Ilke is deciding whether to take his girlfriend on a dinner date or on a movie date. The probability of his having a successful dinner date is 55%. The probabil
PLEASE DO THIS..............
Please help! Algebra 2 question:
NEED HELP ASAP!!! The Virginia plan did Not include the following: Lower house for “popular” vote Two Houses of Congress Madison derived his ideas for
What is the answer for this problem in the picture
The outcome of a Supreme Court case is decided by a majority of justices. The smallest possible majority in the Supreme Court is A) one vote. B) nine votes. C
4.9 g = kg convert answer it plz