Question

Match the following identities with their expansion.

• A. $(x+a)(x-a)$
• B. $(x^2+2xa+a^2)$
• C. $(x^2-2xa+a^2)$

Answer 1

The identities are :

• $(x^2-a^2)=(x+a)(x-a)$
• $(x-a{)}^2=(x^2-2xa+a^2)$
• $(x+a{)}^2=(x^2+2xa+a^2)$