<PRE><B>Question 548975</B>
7x^2+10x=-2

/7
x^2+(10/7)x= -2/7

7	X^2	+	10	x				=	-2
/7									
1	X^2	+	10/7	x+b=	- 2/7
	Calculate third term	(b)							
	2	*	b	*	1	=	10/7		
	2	b	=	10/7					
		b=		10/7	/	2			
		b=		 5/7					
		b^2=		 25/49
					
x^2	+	10/7	x+	 25/49	=- 2/7+ 25/49
(x+ 5/7	)^2=	 11/49				
( x+ 5/7) =  sqrt(11)/7				
x=	- 5/7	+/-	sqrt(11)/7				
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