marlisamoore
marlisamoore
01-09-2017
Mathematics
contestada
can someone help me with this question
Respuesta :
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
VER TODAS LAS RESPUESTAS ( 62+ )
Otras preguntas
What is the most important effect on Earth of the Great Ocean Conveyer Belt?
which city is the setting for the necklace
after the cart bounces, how far does it roll back up the ramp?
the four stages of cellular respiration do not function independently. instead, they are coupled together because one or more outputs from one stage functions a
how to get a six pack in 3 minutes
how long does alcohol stay in the body
how many words are in the english language
Pressure head of 120 inches of water produces _______ psi of pressure
with what minimum speed must you toss a 160 g ball straight up to just touch the 13-m-high roof of the gymnasium if you release the ball 1.4 m above the ground?
how to use food coloring to dye eggs