marlisamoore
marlisamoore marlisamoore
  • 01-09-2017
  • Mathematics
contestada

can someone help me with this question

can someone help me with this question class=

Respuesta :

Banabanana
Banabanana Banabanana
  • 01-09-2017
[tex] x^{2} +2x-5=0 \\ D=b^2-4ac=2^2-4*1*(-5)=4+20=24 \\ x_{1,2}= \frac{-bб \sqrt{D} }{2a}= \frac{-2б \sqrt{24} }{2}=\frac{-2б 2\sqrt{6} }{2}= \frac{-2}{2}б \frac{2 \sqrt{6} }{2} =-1б \sqrt{6} [/tex]

Answer:
B. x = -1 - √6
C. x = -1 + √6
Answer Link

Otras preguntas

If ab = 10 and a2 + b2 = 30, what is the value of (a + b)^2?
A circular pool is ten feet in diameter and five feet deep. What is its volume, in cubic feet?
Why were people from Africa brought to Georgia?
The unstated purpose of the Alien and Sedition Acts was to (A) unite the nation in time of danger (B) deport immigrants who were becoming too numerous (C) prote
Which of the allies suffered the greatest losses on D-Day
How many miles can you get on one tank of gas if your tank holds 18 gallons and you get 22 miles per gallon?
The unstated purpose of the Alien and Sedition Acts was to (A) unite the nation in time of danger (B) deport immigrants who were becoming too numerous (C) prote
Can someone please help me ?
How many miles can you get on one tank of gas if your tank holds 18 gallons and you get 22 miles per gallon?
Why were people from Africa brought to Georgia?