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 ( 38+ )
Otras preguntas
how did jazz demonstrate the independent spirit of the times?
you are building a birdhouse that will have a volume of 128 in^3. the birdhouse will have the dimensions shown a. write a polynomial that represents the volume
What are the possible values for x in the equation 4x^2 = 64(1) x=0 (2) x=4 (3) x=4,-4 (4) x=0,4,-4
Why did Pres. Truman believe that political change would come to the Soviet Union?A. The failures of the Soviet Nuclear programB. The Appeal of freedom and the
A climber is on a hike.after 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change?
Pistachios were priced at 3 pounds for $ 6.99. (a) what were the price per pound? (b) how much would 10 pounds of pistachios cost?
you are building a birdhouse that will have a volume of 128 in^3. the birdhouse will have the dimensions shown a. write a polynomial that represents the volume
her investment grew 22% to$610 how much did she invest____ ( solve as an equation or fraction)
A rocket is launched from the ground. The function h(t)= -4.9t^2 +180t models the height of a rocket launcher from the ground t seconds after it is launched.
An element with mass 1000 grams decays by 14.8% per minute. How much of the element is remaining after 11 minutes, to the nearest 10th of a gram?
