Question

find the product (a-2)(a+2)​

Answer 1

Answer:

$a^{2}-4$

Step-by-step explanation:

(a+2)(a-2)                                          Using Identity- $(a+b)(a-b)=a^{2}-b^{2}$

⇒$(a)^{2}-(2)^{2}$

⇒$a^{2}-4$