Question

Write any 4 identities in algebra​

Answer 1

Identity I: (a + b)2 = a2 + 2ab + b2

Identity II: (a – b)2 = a2 – 2ab + b2

Identity III: a2 – b2= (a + b)(a – b)

Identity IV: (x + a)(x + b) = x2 + (a + b) x + ab

Answer 2

Answer:

First identity= (a+b)²= a²+2ab+b²

2. ( a-b)²= a²-2ab+b²

3. a²-b²= (a-b) (a+b)

4. ( X+a) ( X+b) = x²+ ( a+b)X+ ab