Write any three different forms of the formula (a + b)^2.

We know that,
(a + b)² = a² +b² + 2ab
In mathematics, the algebraic identity (a + b)² can be defined in different three ways as given below.
1. The square of the sum of two terms identity:
Sum = (a + b), square of this sum is (a + b)²
2. The square of a binomial rule:
Binomial term = (a + b), square of this term is (a + b)²
3. The special binomial product formula:
Binomial term = (a + b); product that represents the identity is (a + b)(a + b)