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 ( 46+ )
Otras preguntas
What is a power of the state government that is created by the division of government into different levels? A)State governments decide which national laws to e
which of the following describes a major contradiction between the us governments stated aims and actual policies during world war 1? a) the government insisted
Tell whether (3,5) is a solution of y = 5x – 10.
Help me answer these please
Points Y and Z are points of tangency. Find the value of a.
Maribel wants to skate 1 1/2 miles on monday
A robot's height is 120 centimeters. How tall is the robot in millimeters? Record your answer and fill in the bubbles on your answer document, Be sure to use th
this type of business ownership can do anything a person can do own property pay taxes are being sued one out of five business are this
B/C 4. Alló, Ciné-Forum Vous voulez aller au cinéma ce soir. Vous téléphonez au Ciné-Forum pour obtenir des informations. Complétez votre conversation.
Two charges, one +Q and the other −Q, are held a distance d apart. Consider only points on the line passing through both charges and clearly explain your answe