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 ( 43+ )
Otras preguntas
30 POINTS REWARD PLEASE HELP ME!! How did John Calhoun react to the Tariff of 1828? 1) He used his power as vice president to influence President Jackson to opp
Siddhartha Gautama was called the Buddha, which means "Great Soul." "Fearless Warrior." "Noble Man." "Enlightened One."
y - 6 greater than or equal to 2 ( srry I couldn't figure out how to make the greater than or equal to sign on my phone )
A circular loop of wire lies flat on a level table top in a region where the magnetic field vector points straight upward. The magnetic field suddenly vanishes.
Name one type of common fallacy you could encounter during a professional interview and describe how you would avoid that misconception
if a cell has 80 chromosomes in the g1 intephase, how many chromosomes will be in each cell at the end of mitosis a. 20 b. 40 c. 80 d. 160
The theme of this story is, “Hard work pays off.” Which example best explains how the author develops this idea over the course of the text? The narrator wins a
Given the DNA strand GAATTCCTCGAG, what would be the complimentary strand to make the double stranded DNA? How do you get the answer?
what questions might a historian ask themselves to evaluate a source?
How do I solve 964x83
