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 ( 55+ )
Otras preguntas
Read the passage. Then answer the question. "It is quite manifest to every person who has had an opportunity of experiencing the advantage of Indian services th
Using a scientific calculator or graphing calculator to find the inverse tangent of the ratio. Round to the nearest degree. StartFraction 7 Over 5 EndFraction a
Use the Distributive Property to expand 6(8x - 2y) -3.
A forest covers 44,000 acres. A survey finds that 0.8% of the forest is old-growth trees. How many acres of old-growth trees are there
The graph shows the density of a substance. Find the density in kilograms per liter.
The local newspaper has letters to the editor from 80 people. If this number represents 2% of all of the newspaper's readers, how many readers does the newspa
Math work...HELPPPP!
The point (2, 2) is on the line given by which of the equations below?
Complete a multiparagraph informative/explanatory essay about what can cause a sudden change in someone's life. Use the stories from the unit, the video, and f
If you had 5 watermelons then got a nuclear arsanel and fired upon them how many is left?
