How to expand the following (or I need the formula )

(a + b + c)the whole square
(a + b - c)the whole square
(a - b + c) the whole square



This is main formula but the next two is just to substitute negative value and form a formula .

  • 3
(a+b+c) = a2+ b2 + c2 + 2ab + 2bc + 2ac
  • 0
1.A+ B2 + C2 + 2AB +2BC+ 2CA
​2. A+ B2 + C+ 2AB- 2BC-2CA
​3.A+ B2 + C-2AB-2BC+2CA
 
  • 1
What are you looking for?