What time what Equals 196 and adds up to get 53

xy=196 
x+y =53 (or y=53-x) 

x(53-x)=196 
53x-x^2=196 
x^2-53x+196=0 
-49 and -4 work... 


x^2-49x-4x+196= 
x(x-49)+4(x-49)=0 

(x+4)(x-49)=0 

so we use x=49 
and then we see y=4 

:)