SOLUTION: a2+b2-4(a+b)=-8 Find a-b=?

Algebra ->  Equations -> SOLUTION: a2+b2-4(a+b)=-8 Find a-b=?      Log On


   

Question 1120192: a2+b2-4(a+b)=-8
Find a-b=?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
a^2+b^2-4(a+b)=-8
Find a-b=?
a = 2; b = 2; a-b = 0
:
You can factor this and see this also
Rearrange
(a^2 - 4a + 4) + (b^2 - 4b + 4) = 0
(a-2)(a-2) + (b-2)(b-2) = 0
a & b = 2