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

Otras preguntas

A company gives you a document to review. This document lays out the strengths and weaknesses of a proposed business venture. It also evaluates the venture's po

How did the events between 1776 and 1787 influence the development of American democrary?

What is the carbon cycle

Can someone plug some numbers into a small equation real quick for me?:) -1, -7, -13, -19 plug into Sn = n/2(a1+an)

explain how the structure of a cellouse molecule relates to the molecules function

I DON'T UNDERSTAND... HIGH SCHOOL CHEMISTRY HELP???!?!! What happens to the half-life and mass of reactants broken down during a nuclear decay reaction? A The h

Solve for L. A=1/2piW2^+2LW

please help due tomorrow

hi I'm having trouble with my history homework

Evaluation apprehension is related to social facilitation in the same way that _______ is related to the Ringlemann effect. A. social loafing B. proxi