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
11/14 minus what is equal to 4/14
how how do you how do you estimate 4.23-2.51
About what percentage of the slaves were sent to the United States?
An ocean explorer tells a story of a ship full of treasure that sank to the ocean floor. If he knows that nutrients are scarce on the area, where does he expect
From where do we obtain the cells of our test subject?
To combine a range of cells into one large cell, you should highlight the cells and choose a. Decrease Indent. b. Wrap Text. c. Merge Cells. d. Increase Ind
_____ established plantations on islands off the coast of Africa.
Which word correctly completes the sentence? Do they know whether __________ going bowling or not? a. they're b. there c. their
even has 4 marker that is 7 fewer markers than jenna has how many markers does jenna have
She is a good dancer. She moves like ____________
