Question

(X-4)•(X+4) ayedenme porfavor

Answer 1

Respuesta:

${x}^{2} - 16$

Explicación paso a paso:

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

${x}^{2} - {4}^{2}$

${x}^{2} - 16$

Answer 2

Respuesta:

Explanation:

If your looking to expand these out:

In mathematics, theres a well known rule in algebra called the difference in two squares, what should be committed to memory and understood how to apply:

a

2

−

b

2

≡

(

a

+

b

)

(

a

−

b

)

aplicando esto

a

=

x

,

b

=

4

⇒

a

2

−

b

2

=

(

x

)

2

−

4

2

⇒

x

2

−

16

Explicación paso a paso: