Question

(x-2)(x+2)+3
ans the following​

Answer 1

Answer:

(x-2)(x+2)+3

x^2-2^2+3

x^2-4+3

x^2-1

(x+1)(x-1)

Therefore x=1 or-1

is the right answer.

Answer 2

Answer:

We solve using this formula :

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

$\: \: \: \: \: (x - 2)(x + 2) + 3$

$= {(x)}^{2} - {(2)}^{2} + 3$

$= {x}^{2} - 4 + 3$

$= {x}^{2} - 1$