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 ( 73+ )
Otras preguntas
When President Herbert Hoover raised taxes in 1932, Keynes correctly predicted that economic activity would ___________________..
Why are structures built on soft sand or mud often destroyed in an earthquake when nearby structures built on bedrock remain essentially undamaged?
Academic book publishers hire editors, designers, and production and marketing managers who help prepare books for publication. Because these employees work on
Female bowerbirds prefer male bowerbirds that build large bowers. This is an example of _______ selection.
Persons less than 21 who drive with a BAC of at least .02 but less than .08 may lose their drivers license for 6 months under the ________ law
A brick of 203 x 102 x 57 mm in dimensions is being burned in a kiln to 1100°C, and then allowed to cool in a room with ambient air temperature of 30°C and conv
which aspect of a certificate makes it a reliable and useful mechanism for proving the identity?
5. Acquiring, Storing, and Inventorying Resources are part of which NIMS Management Characteristic?
For every 10 glen earns his parents require him to save 2 . What percent of his money does he save
Out of 1,000 tickets in a raffle, one ticket will win a $710 prize. The rest will win nothing. If you have a ticket, what is the expected payoff?
