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 ( 61+ )
Otras preguntas
what is the total valence electrons of CO3^-2
which of the following are examples of common threats you may encounter online?
A recording of the current weather conditions last 3/4 minute. If the recording plays repeatedly , how many times would it play in 1 hour?
can you translate it GermanJe vois une maison enneigé ou habite des vikings.La femme de Hägar Dünor demande de l'aide à son cannard et le remercie l'avoir aidé
Fill in the blank in the following sentence with the appropriate possessive adjective below. (PLEASE HELP NEED ANSWER ASAP)
can you translate it GermanJe vois une maison enneigé ou habite des vikings.La femme de Hägar Dünor demande de l'aide à son cannard et le remercie l'avoir aidé
Consider ΔWXY and ΔBCD with ∠X ≅∠C, WX ≅ BC, and WY ≅ BD. Can it be concluded that ΔWXY ≅ ΔBCD by SAS? Why or why not? no, because the third corresponding sides
How plants give off oxygen?
Harold had 1,400 stamps. He gave 350 of them to his brother and the rest to his sister.What percent of the stamps did he give to his brother?
Dwayne has $80 to spend on video games. Used video games cost $10 each, and new video games cost $20 each. What equation in standard form determines the number
