Given that x and y are real numbers, what is the value of x + y ?
1. (x² - y²) / (x-y) = 7
2. (x + y)² = 49
1. (x² - y²) / (x-y) = 7
2. (x + y)² = 49
It takes time and effort to explain, so if my comment helped you please press Thanks button 
Just because something is hard doesn't mean you shouldn't try,it means you should just try harder.
"Keep Walking" - Johnny Walker
Just because something is hard doesn't mean you shouldn't try,it means you should just try harder.
"Keep Walking" - Johnny Walker
