Question

( x - 2 ) ( x + 2 ) (

Answer 1

Step-by-step explanation:

$(x - 2)(x + 2) \\ x(x + 2) - 2(x + 2) \\ x { }^{2} + 2x - 2(x + 2) \\ x {}^{2} + 2 x - 2x - 4 \\ x {}^{2} - 4$

Answer 2

(X-2)(x+2) = x.x+2x-2x-4
= x.x - 4
=x^2 - 4