Respuesta :
Answer:
16 -x^2
Step-by-step explanation:
(4+x) (4-x)
We recognize that this is
(a+b)(a-b) and it is equal to (a^2-b^2)
4^2 - x^2
16 -x^2
Answer:
16 -x^2
Step-by-step explanation:
(4+x) (4-x)
We recognize that this is
(a+b)(a-b) and it is equal to (a^2-b^2)
4^2 - x^2
16 -x^2