Question 458663
width =x ft
length = x+10 feet

Area =	9191	sq.ft													
Width 	=x	ft											
Length  	=(x+10)
Area =	x*(x+10)
9191	=x^2+10	x
x^2+10x	-9191	=0
Find the roots of the equation by quadratic formula							
							
a=	1	b=	10	c=	-9191		
							
b^2-4ac=	100-36764				
b^2-4ac=	36864	
{{{sqrt(	36864	)}}}=	192
{{{x=(-b+-sqrt(b^2-4ac))/(2a)}}}							
{{{x1=(-b+sqrt(b^2-4ac))/(2a)}}}							
x1=(-10+192)/2		
x1=91						
x2=(-10	-192) /	2			
x2= 	-101						
Ignore negative value							
x	=	91 feet	
length = 91+10 = 101
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