Question 869811
{{{2x^2+4x+1=0}}}

compare with {{{ax^2+bx+c=0}}}

a=	2	,	b=	4	,	c=	1
							
b^2-4ac=	16	+	-8				
b^2-4ac=	8						
{{{	sqrt(	8	)=	2.83	}}}		
{{{x=(-b+-sqrt(b^2-4ac))/(2a)}}}							
{{{x1=(-b+sqrt(b^2-4ac))/(2a)}}}							
x1=(	-4	+	2.83	)/	4		
x1=	-0.29						
{{{x2=(-b-sqrt(b^2-4ac))/(2a)}}}							
x2=(	-4	-2.83	) /	4			
x2=	-1.71