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 ( 69+ )
Otras preguntas
what group of egyptians built the giant temples of the pharaohs
Identify all possible products of meiosis in plant and animal life cycles.
name another tool scientist use that performs a similar function as a microscope
x-7<25 what is the x?
is there a multiple of 3? And why not or why yes?
HELP? Which of the following statements best describes why many people have difficulty learning to read? A. Reading is a task that involves all five senses.
GCF Of 112 and 54 With Work
What is the equivalent metric liquid volume unit for a cube that measures 10cm in length, 10 cm in width, and 10 cm in height? one liter one kilogram one cubic
What is the GCF of 36 and 84
Which of the following are good conductors? A.A rubber tire B.A penny C.A newspaper D.An aluminum soda can E.Water F.Air
