Question 1028307
*[illustration pool]


Find the roots of the equation by quadratic formula								
								
a=	6	b=	31	c=	-402			
								
b^2-4ac=	961	-	-9648					
b^2-4ac=	10609			{{{sqrt(	10609	)}}}=	103	
{{{x=(-b+-sqrt(b^2-4ac))/(2a)}}}								
{{{x1=(-b+sqrt(b^2-4ac))/(2a)}}}								
x1=(	-31	+	103	)/	12			
x1=	6							
x2=(	-31	-103	) /	12				
x2=	-11.17							
Ignore negative value							
x	=	6						
width on three sides of pool = 6 ft