Question 726550
r1+r2=418

1/r1 +1/r2=1/104

(r1+r2)/r1r2=1/104

104*(r1+r2)=r1r2

104*418=r1r2

r1r2=43472

r1= 43472/r2

r1+43472/r1= 418

r1^2+43472=418r1

r1^2-418r1+43472=0

Find the roots of the equation by quadratic formula							
							
a=	1	,	b=	-418	,	c=	43472
							
b^2-4ac=	174724	+	-173888				
b^2-4ac=	836						
{{{	sqrt(	836	)=	28.91	}}}		
{{{x=(-b+-sqrt(b^2-4ac))/(2a)}}}							
{{{x1=(-b+sqrt(b^2-4ac))/(2a)}}}							
x1=(	418	+	28.91	)/	2		
x1=	223.46						
{{{x2=(-b-sqrt(b^2-4ac))/(2a)}}}							
x2=(	418	-28.91	) /	2			
x2=	194.54						

194.54 & 223.46 ohms