Question

a-b(a+b) solve this
​

Answer 1

Answer:

a²-b² it's an identity (a-b)(a+b) =a²-b²

Answer 2

A+B  and A-B are two binomials. The two binomials are special binomials because they both are formed by the same terms A+B and  A-B. Therefore, the product of special binomials  and  is called as the special product of binomials. The product of them is actually obtained by the multiplication of  A+B and A-B .