Question

a^2+b^2=?

Answer 1

simplify?

Answer 2

\[a^2 + b^2 = (a+b)^2 -2ab =(a-b)^2 +2ab \]

Answer 3

\[(a+b)^2 - 2ab \quad or \quad (a-b)^2 + 2ab\]

Answer 4

or \((\pm a \pm b)^2 \pm 2ab\)

Answer 5

@Aventre

a^2+b^2 cannot be factored over the set of Real Numbers.