Jkr
Jkr
02-11-2014
Mathematics
Answered
2b^2+4b–2=0 what is the answer?
Answer :
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
VIEW ALL ANSWERS ( 46+ )
Other Questions
Which expression is equal to the number of grams (g) in 2.43 kilograms (kg)?
13 add 2x equals 3 what does x equal??
What is the high energy molecule formed at the end of cellular respiration called? A.ADP B.ATP C.NAD
Genard ran out of TILE for his patio. The width of remaining area is 2 2/9 feet. the lenght of the remaining area is 7 ft. how much does gerald have left to til
Log1/6(5). I am absolutely clueless as to what i'm supposed to do. The 1/6 is below the log.
x2-4x=177 (the 2 is an exponent)
What is Fomite borne diseases?
Which words in the sentence make up the adjective phrase? Which word does the adjective phrase modify? After dinner last night, I ate my favorite kind of ice
Which is an accurate description of a winter solstice? A. The hemisphere is tilted away from the sun and the sun reaches its highest point in the sky. B. The he
name two organ systems that work closely together and explain how they interact
