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 ( 54+ )
Otras preguntas
Need help with this I’d really appreciate it
Type the spelling words that will correctly complete the sentence. He almost dropped his candy when he slipped on the wet pavement.
Steps on how to solve?
The question is in the photo
Which best describes what "vain pretense" means?
Under what conditions would pressure affect the reaction rate
A spinner has a 60 degree green sector, a 120 degree blue sector, and a 180 degree red sector. Harry spins the spinner twice.a) Find the probability that the sp
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
pls help me i need an a
Hello can u guys help me please
