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 ( 97+ )
Otras preguntas
Which statement best identifies what the debate revealed about modern presidential campaigns
Which statement best explains the bias of an interviewer in asking questions? A.) She asks the questions to which she wants the answer. B.) She asks the quest
Pls explain and solve
Can u do these guys please
Which radical expression is an irrational number? A. ∛216 B. ∛144 C. ∛64 D. ∛125
How did the use of standard currency, or coins, help the economy of the Roman Empire?
Click through the pictures until you find the type of organization which matches the sentence below.A.spatialB.General to particularC.comparison or contrastd.ch
In which 13 colonies were the two earliest battles fought?
what is 1/3 of 7??????
yuri wrote twice as many poems as xenia. yuri wrote 3 more poems than xenia. the number of poems written can be represented by the system of equations: y=2x and
