Question 906792
a - b = 2
{{{a^2}}}+{{{b^2}}}=20
Easiest way to do this is by estimation.  Since the squares added together are going to be 20, we know that the largest number must be 4 or less.  Since they're two apart, the choices are:
4,2
3,1
2,0
Which of those pairs fitting the top equation also fits the bottom equation?
Only 4,2