Standard Algebraic Identities

Square identities

Identities are the algebraic equation which is always true regardless of the values assigned to the variables.

1.(a+b)2=a2+2ab+b2

2.(a−b)2=a2−2ab+b2

3.(a+b)(a−b)=(a2−b2)

4.(x+a)(x+b)=x2+(a+b)x+ab

Some examples on square identities