Jkr
Jkr
02-11-2014
Mathematics
contestada
2b^2+4b–2=0 what is the answer?
Respuesta :
konrad509
konrad509
02-11-2014
[tex]2b^2+4b-2=0\\ 2(b^2+2b-1)=0\\ 2(b^2+2b+1-2)=0\\ 2((b+1)^2-2)=0\\ 2(b+1)^2-4=0\\\ 2(b+1)^2=4\\\ (b+1)^2=2\\ b+1=-\sqrt2 \vee b+1=\sqrt2\\ b=-1-\sqrt2 \vee b=-1+\sqrt2 [/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 33+ )
Otras preguntas
A standard deck of 52 cards consists of 4 suits (hearts, diamonds, clubs, and spades). Each suit includes cards numbered 2 through 10, a jack, a queen, a king,
On a cartesian coordinate plane, point a is at (-2, 2) and point b is at (1, -4) what is the equation for line ab
Ronald spins a spinner that has 10 sections numbered from 1 to 10. What is the probability that the spinner lands on a 4
What does the force of gravity most affect? Weight/volume/height/mass
What was the role of women as industry increased? A. They became industry leaders. B. They ran for government office. C. They led the household. D.
An atom contains one proton , one electron, and one neutron. Which two particles are most similar in mass
How did the network of european alliances cause world war i to develop?
A briefcase in the shape of a rectangular prism has a height of 10 cm and a volume of 4,875 cm^3. What is the area of the base of the briefcase? A. 243.75^2
Grace is standing 14 feet from a lighthouse and Kelly is standing 12 feet from Grace. The angle that Grace looks up to see the top of the lighthouse is 45°. The
Mixed media art would become multimedia art if which of the following was added? A) Paint B) Animation C) Photography D) Wax
