Question

two identities of the binomials with example. class 7​

Answer 1

Step-by-step explanation:

Algebra Identities Under Binomial Theorem

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

Identity-II: (a – b)2 = a2 – 2ab + b2

Identity-III: (a + b)3 = a3 + 3a2b + 3ab2 + b3

Identity-IV: (a – b)3 = a3 – 3a2b + 3ab2 – b3

Identity-V: (a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca.

Identity-VI: (x + a)(x + b) = x2 + (a + b) x + ab.