Question 435673
x^2+x^2=(x+7)^2
2x^2=x^2+14x+49
x^2-14x-49=0
Find the roots of the equation by quadratic formula			
a= 1	b=	-14	c=	-49					
b^2-4ac=196+196											
b^2-4ac=392    	sqrt(392)=19.8							
{{{x=(-b+-sqrt(b^2-4ac))/(2a)}}}														
{{{x1=(-b+sqrt(b^2-4ac))/(2a)}}}														
x1=(14+19.8)/2									
x1=16.9													
x2=(14-19.8)/2										
x2= 	-2.9													
Ignore negative value	
The leg is 16.9 cm
Hypotenuse = 23.9 cm